building a PP amp
Raymond Koonce
Hope you enjoyed your Sunday afternoon as much as I did, working on a PP
amp using 71A triodes for my office environment. I breadboarded one
channel and a PS for testing purposes and it sounds pretty good to me.
The PS is LCLCRC with 7Hy chokes and motor run caps for filtering. The
amp uses transformer input with some Newcomb microphone transformers.
They plug into a really odd 9-pin "octal" style socket (noctal?). The
volume control follows the secondary and the wiper feeds the grid of a
56 which is IT coupled to the grids of the 71As. The IT is a Hammond
unit and I'm not sure it's up to par (the price was OK). It's the 124B
version with a 49% nickel core. The 56 is biased with a 2.2K R bypassed
with 100uF. The 71As have separate CT filament transformers with the
CTs connected to 1.2K bypassed by 47uF. B+ is around 200V with 40mA
through the output tubes. That's about it, not much in there, really.
It has about 35dB gain at 1KHz, a little weak in the bass. I suspect
the IT. I can get about 2 watts out of it at mild clipping.
I may play around with some feedback to see what happens. Any
suggestions as to a good IT? The Hammonds don't seem to have the
bandwidth to support the low end.
Best regards,
Raymond
Eeyore
Raymond Koonce wrote:
> Hi RATs,
>
> Hope you enjoyed your Sunday afternoon as much as I did, working on a PP
> amp using 71A triodes for my office environment. I breadboarded one
> channel and a PS for testing purposes and it sounds pretty good to me.
Have you ever considered moving into the current century ?
Graham
Nick Gorham
I think this is the important bit
"Hope you enjoyed your Sunday afternoon as much as I did"
--
Nick
Arny Krueger
news:001e2fdf$0$28746$c3e...@news.astraweb.com
I spend *all* of my Sunday afternoons in the current (e.g. 21st) century.
Nick Gorham
And I would have thought you would spend at least part of that time
reading religious texts from some 100s of years ago Arni.
--
Nick
Arny Krueger
Reading ancient texts is meaningless unless you can figure out how to apply
their wisdom to your present context. Therefore, being grounded in the
present is an important part of the experience.
Raymond Koonce
surprisingly good.
Ian Iveson
>
> Reading ancient texts is meaningless unless you can figure
> out how to apply their wisdom to your present context.
> Therefore, being grounded in the present is an important
> part of the experience.
Thanks, Arni, I feel inspired.
Audio is only up to date now because it wasn't, then. We
should all build SS amps because only by not-being can we
have an inkling of being. History is the fourth dimension,
after all.
Ian
Eeyore
Raymond Koonce wrote:
> Eeyore wrote:
> > Raymond Koonce wrote:
> >>
> >> Hope you enjoyed your Sunday afternoon as much as I did, working on a PP
> >> amp using 71A triodes for my office environment. I breadboarded one
> >> channel and a PS for testing purposes and it sounds pretty good to me.
> >
> > Have you ever considered moving into the current century ?
>
> No, not really. I like building the old circuits. Some of them sound
> surprisingly good.
Well ... nice if you enjoy it. It's just a shame you're missing out on so much
better.
Graham (highly expereinced PRO-audio designer with a special expertise in audio
power amps up to 2kW)
Peter Wieck
> Reading ancient texts is meaningless unless you can figure out how to apply
> their wisdom to your present context. Therefore, being grounded in the
> present is an important part of the experience.
You poor sod - everything *must* have meaning?
How about simple poetry? There will be times (albeit quite rare) that
I will read Aristophanes "The Frogs" in the original Greek (which I
can read but have forgotten for the most part how to translate) just
to hear the poetry of the Frogs singing...
No "application" there.
Much as I listen to tubes - poor, misbegotten, distorting things that
they are - they simply sound good to my ears, but in an entirely
different way as my SS equipment 'sounds good'. I have no illusions
whatsoever of their "fidelity", utility or quality... just that I
enjoy them is more than enough.
That you are so limited an individual to demand that your perspective
must be the only valid one for all to follow makes you the wretch, not
the rest of us who are able to enjoy things without necessarily
imparting great meaning or value to them. Our time is our own to spend
as we see fit without stone-ignorant creatures such as you yammering
over things you clearly cannot understand. And then drawing the
conclusion that because you do not understand, those things cannot be
worthwhile. Fox and grapes, as previously noted.
Peter Wieck
Melrose Park, PA
Peter Wieck
wrote:
> Well ... nice if you enjoy it. It's just a shame you're missing out on so much
> better.
Who would claim that? Perhaps we have both - that one has steak in the
freezer does not make one averse to a simple bratwurst on occasion...
Most of us with any time in the audio hobby have more than one system
in place. I know of a great many SS system owners who have no tubes,
but I know of no Tube system owners that have no solid-state. It would
seem from the evidence that the self-limiting SS owners are more
ignorant of what is out there and how it migth sound than the tube
owners - based only on my own experience and anecdotal evidence.
Show of hands: Of those who participate here as *actual* Tube
hobbyists/designers/afficionados (as opposed to wannabes and
spoilers), how many of you also own and operate SS systems?
For myself to start out, active systems in active use (more than 2x
per week):
Tube: 2
SS: 4
(6 sets of speakers across the 6 systems above)
Available additional systems (inclusive of at least one source and
speakers) rarely or not used.
Tubes: 2
SS: 3
(3 *additional* sets of speakers shared across the 5 systems above).
Notes:
These systems are spread across two houses, so the summer-house
systems get used every day we are there, but not every day. Due to
distance, placement, use and security, both systems are solid-state.
Our main house has four active systems in three rooms. The library has
two active systems, one-each. The kitchen system is SS for obvious
reasons, the shop system is tube - and the shop system is constantly
changing.
It's a hobby - no great store is set by it other than simple
enjoyment.
Arny Krueger
news:6275b7e7-9d0d-4f9f...@m44g2000hsc.googlegroups.com
> On Jun 23, 11:11 am, "Arny Krueger" <ar...@hotpop.com>
> wrote:
>
>> Reading ancient texts is meaningless unless you can
>> figure out how to apply their wisdom to your present
>> context. Therefore, being grounded in the present is an
>> important part of the experience.
> You poor sod
end of discussion.
There can only be relevant discussion when there is at least a modicum of
respect.
Arny Krueger
news:485fe343$0$4056$bbae...@news.suddenlink.net
I guess that makes sense if surprising yourself how good inherently crappy
things can sound is important to you.
Raymond Koonce
Patrick Turner
Arny, you waste your life not knowing the difference between your arse
and your elbow.
The 71A is one of The Most linear triodes made.
http://www.tubezone.net/pdf/71a.pdf
No wonder it sounds well.
Patrick Turner.
Arny Krueger
news:4862579B...@turneraudio.com.au
> Arny Krueger wrote:
>>
>> "Raymond Koonce" <rko...@dsityler.com> wrote in message
>> news:485fe343$0$4056$bbae...@news.suddenlink.net
>>> Eeyore wrote:
>>>>
>>>> Raymond Koonce wrote:
>>>>
>>>>> Hi RATs,
>>>>>
>>>>> Hope you enjoyed your Sunday afternoon as much as I
>>>>> did, working on a PP amp using 71A triodes for my
>>>>> office environment. I breadboarded one channel and a
>>>>> PS for testing purposes and it sounds pretty good to
>>>>> me.
>>>>
>>>> Have you ever considered moving into the current
>>>> century ? Graham
>>>>
>>> No, not really. I like building the old circuits. Some
>>> of them sound surprisingly good.
>>
>> I guess that makes sense if surprising yourself how good
>> inherently crappy things can sound is important to you.
>
> Arny, you waste your life not knowing the difference
> between your arse and your elbow.
Gee, and you had to go and make it personal and insulting. That's really
manly of you, Pat.
> The 71A is one of The Most linear triodes made.
> http://www.tubezone.net/pdf/71a.pdf
> No wonder it sounds well.
If you want the best possible nonlinear distortion performance from an amp,
go SS.
Peter Wieck
> There can only be relevant discussion when there is at least a modicum of
> respect.
Does this mean that you will take your solid-state ball and go home?
Pretty PLEASE?
For the record - there was never any "discussion" on your part. Just
your pontificating on what you don't understand and cannot imagine.
Which, in no small part, contributes to the general lack of respect
you command here or anywhere else in Usenet - also a matter of
record.
You are muddying waters where you are neither wanted, nor do you have
anything *relevant* to contribute, nor do you appear to have any
interest in the actual purpose of this group at all. So, why is it
that you are here? Do you really enjoy the abuse your absolute
ignorance and obtuse stupidity engenders?
Peter Wieck
> If you want the best possible nonlinear distortion performance from an amp,
> go SS.
D'OH!!
And what if that is *not* the point, nor what we *want*?
Repeat: You poor sod. You are so utterly clueless that you actually
believe you have something to offer here. That is about as sad and
futile as a moth flying into a candle-flame. The poor dumb beast just
doesn't know any better.
Arny Krueger
> On Jun 25, 10:43 am, "Arny Krueger" <ar...@hotpop.com>
> wrote:
>> "Patrick Turner" <in...@turneraudio.com.au> wrote in message
>> news:4862579B...@turneraudio.com.au
>>> The 71A is one of The Most linear triodes made.
>>> http://www.tubezone.net/pdf/71a.pdf
>>> No wonder it sounds well.
>> If you want the best possible nonlinear distortion
>> performance from an amp, go SS.
> D'OH!!
> And what if that is *not* the point, nor what we *want*?
Then enjoy!
BTW, I'm not the one who brought up amplifier linearity as an issue. Patrick
did.
Peter Wieck
> "Peter Wieck" <p...@aol.com> wrote in message
>
> news:47b1a009-88d6-4ec1...@e53g2000hsa.googlegroups.com
>
> > On Jun 25, 10:43 am, "Arny Krueger" <ar...@hotpop.com>
> > wrote:
> >>news:4862579B...@turneraudio.com.au
> >>> The 71A is one of The Most linear triodes made.
> >>>http://www.tubezone.net/pdf/71a.pdf
> >>> No wonder it sounds well.
> >> If you want the best possible nonlinear distortion
> >> performance from an amp, go SS.
> > D'OH!!
> > And what if that is *not* the point, nor what we *want*?
>
> Then enjoy!
>
> BTW, I'm not the one who brought up amplifier linearity as an issue. Patrick
> did.
Actually, he did not. He merely stated that the 71A is one of the most
linear of tubes. Not hardly the same thing - except in the mind of a
stone-ignorant jackass incapable of understanding what is actually
being discussed. Well, I must apologize - to the hooved jackass. They
are hardly so ignorant as you and seldom intrude where they are not
wanted. Whereas both of those traits are nearly your entire stock-in-
trade.
Is that personal enough for you?
Arny Krueger
> On Jun 25, 1:33 pm, "Arny Krueger" <ar...@hotpop.com>
> wrote:
>> "Peter Wieck" <p...@aol.com> wrote in message
>>
>> news:47b1a009-88d6-4ec1...@e53g2000hsa.googlegroups.com
>>
>>> On Jun 25, 10:43 am, "Arny Krueger" <ar...@hotpop.com>
>>> wrote:
>>>> "Patrick Turner" <i...@turneraudio.com.au> wrote in
>>>> message news:4862579B...@turneraudio.com.au
>>>>> The 71A is one of The Most linear triodes made.
>>>>> http://www.tubezone.net/pdf/71a.pdf
>>>>> No wonder it sounds well.
>>>> If you want the best possible nonlinear distortion
>>>> performance from an amp, go SS.
>>> D'OH!!
>>> And what if that is *not* the point, nor what we *want*?
>>
>> Then enjoy!
>
>> BTW, I'm not the one who brought up amplifier linearity
>> as an issue. Patrick did.
> Actually, he did not. He merely stated that the 71A is
> one of the most linear of tubes.
Then, if not for building linear amplifiers, what?
Peter Wieck
> "Peter Wieck" <p...@aol.com> wrote in message
>
> news:fdd9d60b-69f8-422f...@a70g2000hsh.googlegroups.com
>
>
>
>
>
> > On Jun 25, 1:33 pm, "Arny Krueger" <ar...@hotpop.com>
> > wrote:
> >> "Peter Wieck" <p...@aol.com> wrote in message
>
> >>news:47b1a009-88d6-4ec1...@e53g2000hsa.googlegroups.com
>
> >>> On Jun 25, 10:43 am, "Arny Krueger" <ar...@hotpop.com>
> >>> wrote:
> >>>> "Patrick Turner" <i...@turneraudio.com.au> wrote in
> >>>>> The 71A is one of The Most linear triodes made.
> >>>>>http://www.tubezone.net/pdf/71a.pdf
> >>>>> No wonder it sounds well.
> >>>> If you want the best possible nonlinear distortion
> >>>> performance from an amp, go SS.
> >>> D'OH!!
> >>> And what if that is *not* the point, nor what we *want*?
>
> >> Then enjoy!
>
> >> BTW, I'm not the one who brought up amplifier linearity
> >> as an issue. Patrick did.
> > Actually, he did not. He merely stated that the 71A is
> > one of the most linear of tubes.
>
>
> - Show quoted text -
Remove the descriptive - that is _your_ hang-up and what keeps you
mired in ignorance and stupidity.
I will not put words on Patrick's keyboard, but if given leave to
interpret, I would do so as follows:
a) The 71A is one of the most linear of triodes (NOTE: This is as
compared to other triodes - not as an independent absolute).
b) If one is designing a triode-based amplifier, one might do well by
considering the 71A.
Just to heap more mud on your pointy little head - what an distortion
meter or other instrument or specifications might show me is of little
relevance to what I enjoy doing and what my hobbys encompass or the
focus of my listening pleasure. Nor would I pretend that _anything_ I
own, or I have built/modified/repaired is the ne plus ultra of
anything, at all. But it gives me pleasure.
That nothing here or related to tubes appears to give you pleasure -
that you insist that all our "grapes" must be sour makes you the 'poor
sod'. Not those of us who can find enjoyment in such simple,
distorting, spavined little glass bits such as vacuum tubes. So, go
away. You have nothing to offer here, you don't understand what goes
on here, you cannot participate here in any meaningful way based on
your history past and recent - you are a waste of air, water, space
and bandwidth as far as this NG is concerned. Go where you might
command some respect - if there is such a place. You will be done with
us, we will be done with you - an excellent result all around.
Peter Wieck
> Arny is a solid state jihadist who's taken it upon himself to rid the
> world of tube heretics.
Arny is a bitter, ignorant, small-minded little sod who enjoys nothing
(here), believes in nothing, feels nothing except emptiness and wants
everyone else to be in as sorry a state as he is.
Jihadists and fanatics at the very least are willing to put their
lives on the line for their beliefs - however benighted they might be
from our perspective. Can you imagine that level of committment from
Arny? Even a little bit?
keithr
"Eeyore" <rabbitsfriend...@hotmail.com> wrote in message
news:48607482...@hotmail.com...
>
>
> Raymond Koonce wrote:
>
>> Eeyore wrote:
>> > Raymond Koonce wrote:
>> >>
>> >> Hope you enjoyed your Sunday afternoon as much as I did, working on a
>> >> PP
>> >> amp using 71A triodes for my office environment. I breadboarded one
>> >> channel and a PS for testing purposes and it sounds pretty good to me.
>> >
>> > Have you ever considered moving into the current century ?
>>
>> No, not really. I like building the old circuits. Some of them sound
>> surprisingly good.
>
> Well ... nice if you enjoy it. It's just a shame you're missing out on so
> much
> better.
Whether he is missing out on something better is irrelevant, after all why
restore a 1929 Blower Bentley when you could buy a far more comfortable and
better performing modern car at a fraction of the cost? People do all sorts
of things, mostly pointless in the larger scheme of things, simply because
they enjoy it. Why else would line dancing exist?
keithr
Come to that, why do people spend so much of their time participating in
pointless usenet arguments? Pleasure sometimes comes in strange ways.
Patrick Turner
The good music obtained by the OP is due to the splendid
linearity of the 71A.
I agree with what you say though, and you said
for the most non-linear distortion, use solid state.
Its extraordinary distortion from SS, it isn't even linear in itself.
You forgot to mention that huge amounts of NFB are needed to
linearize the awful performance by SS.
Happy Fucktarding,
Patrick Turner
Patrick Turner
Line dancing leads to sex, didn't you know?
Ya can't have all those cowboys and cowgirls all
dancing up and down steets without lots of 'em thinking
about the fuckability quotient ( FQ ) of each other.
Patrick Turner.
keithr
You have to do something about your obsession with sex Patrick, these days
it is probably illegal.
Patrick Turner
Yes, ppl say I should do lotsa things, and some
say i should get fucked.
Its illegal these days to think about sex once each 5 minutes, if you
are over 60, while dreaming about it all night long.
Its demeaning to wimmyn you know.
Anyway, line dancers think about sex each 2.5 minutes, lasting about 30
seconds,
thus leaving 120 seconds to co-ordinate foot movements
to raucous music sung by Garth Brookes et all, before
another sex thought occurs.
The line dancers need to think very intensely about foot movements
( and the odd hip movement ) and because of their country
social orientation and having spent years alone on tractors or in lonely
country kitchens, their focusing efforts when dancing is exhausting,
thus diluting
the intensity of sex thoughts for the 20% of the time dancing.
They compensate for the complex social situation by forming
M-F-M-F-M-F conga lines which snake right down the town square,
and the only reason mass rape on the spot does not occur is that the M
participants cannot maintain a hard-on while line dancing,
and while remembering that the husband or boyfriend of the Ohio girl
your'e hangin' onta has a large shotgun in the rear of his F100 pick up
truck.
Country livin is all about titilation and denial,
with ever so few ppl ever actually being happy, and the C&W music lyrics
indicate how true it is for the folks out west.....
The all go west to get away from city livin, but they end up trapped
with themselves....
Patrick Turner.
Arny Krueger
news:4862f016$1...@dnews.tpgi.com.au
> Whether he is missing out on something better is
> irrelevant, after all why restore a 1929 Blower Bentley
> when you could buy a far more comfortable and better
> performing modern car at a fraction of the cost?
Sentimentality
Other people's sentimentality - profit motive
> People do all sorts of things, mostly pointless in the larger
> scheme of things, simply because they enjoy it.
> Why else would line dancing exist?
Social contact, exercise.
Arny Krueger
<snip childish melt-down>
> I will not put words on Patrick's keyboard, but if given
> leave to interpret, I would do so as follows:
> a) The 71A is one of the most linear of triodes (NOTE:
> This is as compared to other triodes - not as an
> independent absolute).
So far, you've added nothing to the discussion.
> b) If one is designing a triode-based amplifier, one
> might do well by considering the 71A.
Again, you've added nothing.
<snip another childish melt-down>
> What an distortion meter or other instrument or specifications
> might show me is of little relevance to what I enjoy
> doing and what my hobbys encompass or the focus of my
> listening pleasure.
When have I said otherwise?
> Nor would I pretend that _anything_ I
> own, or I have built/modified/repaired is the ne plus
> ultra of anything, at all. But it gives me pleasure.
What have I said to denigrate that?
> That nothing here or related to tubes appears to give you
> pleasure
That's your perception, it seems. For you, your random perceptions seem to
define all of reality. If you perceive it, it has to be true. If you
misperceive anything, there is a good chance that you will be wrong
forever.
> that you insist that all our "grapes" must be
> sour makes you the 'poor sod'.
Never said any such thing. You seem to live in a world of imagination.
> Not those of us who can
> find enjoyment in such simple, distorting, spavined
> little glass bits such as vacuum tubes.
Hey, whatever floats your boat!
> So, go away.
Ummm, no! ;-)
<snip yet another childish melt-down>
Arny Krueger
> Arny Krueger wrote:
>>
>> "Peter Wieck" <pf...@aol.com> wrote in message
>> news:47b1a009-88d6-4ec1...@e53g2000hsa.googlegroups.com
>>
>>> On Jun 25, 10:43 am, "Arny Krueger" <ar...@hotpop.com>
>>> wrote:
>>
>>>> "Patrick Turner" <in...@turneraudio.com.au> wrote in
>>>> message news:4862579B...@turneraudio.com.au
>>
>>>>> The 71A is one of The Most linear triodes made.
>>
>>>>> http://www.tubezone.net/pdf/71a.pdf
>>
>>>>> No wonder it sounds well.
>>
>>>> If you want the best possible nonlinear distortion
>>>> performance from an amp, go SS.
>>
>>> D'OH!!
>>
>>> And what if that is *not* the point, nor what we *want*?
>>
>> Then enjoy!
>> BTW, I'm not the one who brought up amplifier linearity
>> as an issue. Patrick did.
> The good music obtained by the OP is due to the splendid
> linearity of the 71A.
> I agree with what you say though, and you said
> for the most non-linear distortion, use solid state.
Of course that isn't what I said, but enjoy your little melt-down.
> Its extraordinary distortion from SS, it isn't even
> linear in itself.
Have I ever said otherwise?
> You forgot to mention that huge amounts of NFB are needed
> to linearize the awful performance by SS.
It takes huge amounts of NFB to even run a car engine these days. People who
have phobias about NFB must live tortured lives.
keithr
"Arny Krueger" <ar...@hotpop.com> wrote in message
news:YqydnWzlWu2s6_7V...@comcast.com...
The are many ways to get that without looking a complete dork.
Arny Krueger
A lot of people aren't so pretentious that it would matter to them.
keithr
Pretentious moi?
Patrick Turner
I. You have bullshitted here for years, twisting the truth like
plasticine.
2. You have NEVER EVER offered one single piece of constructive advice
to anyone using vacuum tubes
in any electronics.
3. There isn't any need for ppl to be phobic about NFB, and most here
ain't.
But because triode are so linear because of their in-built NFB, there
isn't
any need to add more if you allow for these facts in a given design.
4. Go away, you don't belong here.
Patrick Turner.
Arny Krueger
Prove it.
> 2. You have NEVER EVER offered one single piece of
> constructive advice to anyone using vacuum tubes
> in any electronics.
Sure I have.
> 3. There isn't any need for ppl to be phobic about NFB,
> and most here ain't.
But there are some.
> But because triode are so linear because of their
> in-built NFB, there isn't
> any need to add more if you allow for these facts in a
> given design.
Yeah, sure.
> 4. Go away, you don't belong here.
Obviously, I do belong here - to help keep the delusional ones honest.
Peter Wieck
> Obviously, I do belong here - to help keep the delusional ones honest.
All you would need for that would be a mirror and a tiny modicum of
insight.
Arny Krueger
> On Jun 27, 6:30 am, "Arny Krueger" <ar...@hotpop.com>
> wrote:
>
>> Obviously, I do belong here - to help keep the
>> delusional ones honest.
>
> All you would need for that would be a mirror and a tiny
> modicum of insight.
I have plenty of mirrors, and for your purposes Peter, way too much insight,
personal and otherwise.
Peter Wieck
> I have plenty of mirrors, and for your purposes Peter, way too much insight,
> personal and otherwise.
That would be your delusion. I would refer you to Matthew 7:3, King
James, were you to have any hope of understanding its meaning. Save
that the reference is poetic - and as an ancient text that you cannot
understand has no "relevance" in your case as stated in your prior
posts.
If you had any "insight" at all, you would understand that you have no
place here, that you are pretty much universally reviled here, and
that you will have no net effect here of any nature other than to give
some of us a chance to polish our invective. Sadly, as you do have
such trouble with the rules and forms of logic, the meaning of words
and the English Language in general, most of that is lost on you.
Repeat: you are a poor, sad, delusional sod. I think I might add
'ignorant' or 'obtuse' next time. But I think that 'delusional' covers
it pretty well for now.
Arny Krueger
> On Jun 27, 6:58 am, "Arny Krueger" <ar...@hotpop.com>
> wrote:
>
>> I have plenty of mirrors, and for your purposes Peter,
>> way too much insight, personal and otherwise.
>
>
> That would be your delusion. I would refer you to Matthew
> 7:3, King James, were you to have any hope of
> understanding its meaning.
If you want to argue on those grounds Peter, they apply to you no less than
I. (no pun intended).
> If you had any "insight" at all, you would understand
> that you have no place here,
But I do - I help keep you hyperactive children grounded.
> that you are pretty much universally reviled here,
Speaks more about the revilers than I.
> and that you will have no net
> effect here of any nature other than to give some of us a
> chance to polish our invective.
If you are polishing your invective Peter, then try a different approach.
You are becoming less polished, not more polished.
> Sadly, as you do have such trouble with the rules and forms of logic,
Easy to say, but impossible to prove. Just crass invective.
> the meaning of words and the English Language
Again, just a cheap shot from a cheap mind flapping cheap lips.
> in general, most of that is lost on you.
Letsee, are childish insults lost on me? Yes, guilty as charged!
> Repeat: you are a poor, sad, delusional sod.
That's just crass repetition. Peter, do you know what they say about people
who repeat the identical same actions with the hope of getting a different
result? That's you!
> I think I might add 'ignorant' or 'obtuse' next time.
Been there, done that.
> But I think that 'delusional' covers it pretty well for now.
Good self-diagnosis, Peter. You should reread some of your older stuff, when
you were more in touch with yourself.
What I see is a little man with a frustrating life's situation who needs to
dump his bile on someone, once or more a day. If Jute is out of town and
West is working off his Honey-Do, then there's always moi!
Peter Wieck
> What I see is a little man with a frustrating life's situation who needs to
> dump his bile on someone, once or more a day. If Jute is out of town and
> West is working off his Honey-Do, then there's always moi!
There's that need for your mirrors again, Arny.
Most of the rest of us see no need to pontificate. We enjoy ourselves
and our hobbys. Then along come whining magpies such as you driven to
engage in a futile attempt to spoil the enjoyment by pointing out ad
nauseum the faults of tubes - all of which are well understood anyway.
Really.
Again, you have no place here. Better for you and your delusions to go
somewhere you might be respected or your opinions valued. That is
certainly not here.
As to Jute and Pillock - Jute is capable of on-topic posts, has
actually worked with tubes even if the product is of dubious function
and output (no fault of the tubes in his case) and other than being a
supreme egoist does seem to take some enjoyment out of life even if he
lives it in near-darkness. West is a young, damaged fool in search of
a legend for himself hero to worship but not necessarily
irredeemable.
You are none of the above. It appears from your posts here that you
have no function in your life or hobbies other than to be annoying.
My, my what an utterly stunning ambition.
Patrick Turner
The trouble is that Arnie brings an arnageian gloom,
and a kroogariesque depression to us all,
and he ain't worth the time......
Patrick Turner.
Arny Krueger
> On Jun 27, 8:15 am, "Arny Krueger" <ar...@hotpop.com>
> wrote:
>
>> What I see is a little man with a frustrating life's
>> situation who needs to dump his bile on someone, once or
>> more a day. If Jute is out of town and West is working
>> off his Honey-Do, then there's always moi!
>
> There's that need for your mirrors again, Arny.
> Most of the rest of us see no need to pontificate.
As if the preceeding series was not a stream of such offenses, Peter.
I've got you figured out Peter, you are without fault in your own eyes.
> We enjoy ourselves and our hobbys.
Apparently, not without a need to try to capture a few scalps.
> Then along come whining
> magpies such as you driven to engage in a futile attempt
> to spoil the enjoyment by pointing out ad nauseum the
> faults of tubes - all of which are well understood
> anyway. Really.
If those faults are so well understood and accepted, then why all the
wailing and gnashing of teeth when they are pointed out?
> Again, you have no place here.
As you describe RAT, neither do you, Peter.
> Better for you and your
> delusions to go somewhere you might be respected or your
> opinions valued. That is certainly not here.
So says the one with no personal insight, the one who has to be faultless in
his own eyes.
> As to Jute and Pillock - Jute is capable of on-topic
> posts, has actually worked with tubes even if the product
> is of dubious function and output (no fault of the tubes
> in his case)
If having worked with tubes, or owning tubed equipment grants one
absolution, why not for myself?
> and other than being a supreme egoist does
> seem to take some enjoyment out of life even if he lives
> it in near-darkness. West is a young, damaged fool in
> search of a legend for himself hero to worship but not
> necessarily irredeemable.
Fact is Peter you see me as a threat.
> You are none of the above.
Good example of how delusional and filled with hatred that you are, Peter.
> It appears from your posts
> here that you have no function in your life or hobbies
> other than to be annoying.
Back at you, Peter.
> , my what an utterly stunning ambition.
It's all a figment of your fevered little mind, Peter.
Arny Krueger
> The trouble is that Arnie brings an arnageian gloom,
> and a kroogariesque depression to us all,
> and he ain't worth the time......
Interesting that both you guys have the time to harass me, especially given
how futile you should both know that is.
John Byrns
"Arny Krueger" <ar...@hotpop.com> wrote:
> "Peter Wieck" <pf...@aol.com> wrote in message
> news:f3eef8d5-afd1-4fdf...@l64g2000hse.googlegroups.com
>
> > But I think that 'delusional' covers it pretty well for now.
>
> Good self-diagnosis, Peter. You should reread some of your older stuff, when
> you were more in touch with yourself.
Arny, I am curious what period you are referring to when you say "some
of your older stuff"? By "older stuff" are you referring to stuff Peter
wrote before, and perhaps during, his time in the kingdom, or to "older
stuff" he has written since returning from the kingdom? Peter's
experience in the kingdom did seem to change him markedly, there is no
similarity or continuity between his posts before and after returning.
He is a changed person, your suggestion that he was previously more in
touch with himself is an interesting one.
Regards,
John Byrns
--
Surf my web pages at, http://fmamradios.com/
Patrick Turner
But you have NEVER offered the slightest helpful advice to anyone
building
something electronic with a tube in it.
You bring a hammer to smash the tubes instead.
You are an unwelcome presence in this group.
Everyone has already heard your so called anti-delusion remedies 1,000
times,
and any more bore us to tears.
Patrick Turner.
Arny Krueger
> Arny Krueger wrote:
>>
>> "Patrick Turner" <in...@turneraudio.com.au> wrote in
>> message news:4864F82E...@turneraudio.com.au
>>
>>> The trouble is that Arnie brings an arnageian gloom,
>>> and a kroogariesque depression to us all,
>>> and he ain't worth the time......
>>
>> Interesting that both you guys have the time to harass
>> me, especially given how futile you should both know
>> that is.
>
> But you have NEVER offered the slightest helpful advice
Prove it.
> You bring a hammer to smash the tubes instead.
Just telling it like it is.
> You are an unwelcome presence in this group.
Speaks to your narrow minds, and hypersensitive natures.
> Everyone has already heard your so called anti-delusion
> remedies 1,000 times, and any more bore us to tears.
I'm afraid that I don't know what you are talking about.
Arny Krueger
news:byrnsj-E21ECA....@newsclstr02.news.prodigy.com
Please explain "the kingdom".
John Byrns
"Arny Krueger" <ar...@hotpop.com> wrote:
> "John Byrns" <byr...@sbcglobal.net> wrote in message
> news:byrnsj-E21ECA....@newsclstr02.news.prodigy.com
> > In article <ObadnRt3IudlRPnV...@comcast.com>,
> > "Arny Krueger" <ar...@hotpop.com> wrote:
> >
> >> "Peter Wieck" <pf...@aol.com> wrote in message
> >> news:f3eef8d5-afd1-4fdf...@l64g2000hse.googlegroups.com
> >>
> >>> But I think that 'delusional' covers it pretty well for
> >>> now.
> >>
> >> Good self-diagnosis, Peter. You should reread some of
> >> your older stuff, when you were more in touch with
> >> yourself.
> >
> > Arny, I am curious what period you are referring to when
> > you say "some of your older stuff"? By "older stuff" are
> > you referring to stuff Peter wrote before, and perhaps
> > during, his time in the kingdom, or to "older stuff" he
> > has written since returning from the kingdom? Peter's
> > experience in the kingdom did seem to change him
> > markedly, there is no similarity or continuity between
> > his posts before and after returning. He is a changed
> > person, your suggestion that he was previously more in
> > touch with himself is an interesting one.
>
> Please explain "the kingdom".
"the kingdom" is what Peter calls Saudi Arabia.
Arny Krueger
Hmm. Well, I'm referring to a time some number of months back. How many I'm
not sure. Mybe 4-5 or more. I don't know if it worth it to research google
to put an exact date on it. But, don't tell me what date it is, in case I
do the research later on. Knowing when he was in the kingdom would bias me.
Raymond Koonce
<snip>
Way to ruin a thread. Very little discussion regarding the original
subject, just lots of name-calling. I don't understand you guys. Do
you have nothing better to do than this? I think I'll go build something.
Bye-bye now.
wb
> Eeyore wrote:
>>
>> Raymond Koonce wrote:
>>
>>>
>>> Hope you enjoyed your Sunday afternoon as much as I did, working on a PP
>>> amp using 71A triodes for my office environment. I breadboarded one
>>> channel and a PS for testing purposes and it sounds pretty good to me.
>>
>> Have you ever considered moving into the current century ?
>>
>>
> No, not really. I like building the old circuits. Some of them sound
> surprisingly good.
You bet! Just because a design and a tube are old does not mean they
are not a good. I have designed and built a stereo SET amp using a 6SL7
in each channel (SRPP circuit) driving a paralleled pair of 2A3's in
each channel.
Although I have several more modern designs delivering a lot more power,
I still tend to prefer this SET triode amp. As was said, some old tubes
and circuits do sound surprisingly good.
Patrick Turner
Raymond, baby, come back SOOOON, we'll miss you.
So darling, just what you goona build now?
Patrick Turner.
Andy Evans
build with the 71A amongst other DHTs and I also use the 124b. In one
incarnation I did find the 124b lost some bass, but in another the
bass was certainly there. So I'd guess it's a question of DC balance -
I doubt whether they tolerate any. I've been building fairly quickly
because I don't have too much free time, so I can't give you actual
voltages, but at some point I'll look closer at the 124b to see what's
going on. I do, however, like its midrange and treble.
But why not go further and add an output stage - 71A is one of the
great drivers.
Andy
Raymond Koonce
Thanks for the on topic reply. The price was certainly right on the
124B and I thought with the 49% nickel core, it would do OK, but the
bass is really lacking in this build. It drops off pretty steeply at
80Hz. This circuit is so simple that I really don't see what else I
might do to improve the bass except to use a better transformer. I'm
looking at the Lundahl LL1660S which costs about five times what I paid
for the Hammonds. I'd be interested to see your circuit and any
suggestions you might offer as a way to balance the DC (although I don't
see how I could get any on the grids since the CT of the IT is grounded)
and improve the bass response. I suspected from the start that I might
have a bass issue due to the published specs, but with the price point,
I thought I'd give it a try. I'm driving the 124b with a 56 at about
4.5mA and a bypassed RK. It looks OK on the scope, so that's what leads
me to think it's the IT.
As to an output stage, I'm building this as an amp for my office, so I
really don't need more than a couple of watts. I have used DHTs for
drivers, 300Bs driving 845s. Lots of oomph there!
Best regards,
Raymond
Andy Evans
Hi Raymond
Have you tried a CCS under the 56s - I'm presuming these are a diff.
pair? I use a Morgan Jones design from his Valve Amplifiers book.
Basically two BC549, two red LEDs, a sense resistor and if I have any
a J511 or if not a 1K resistor to earth. This may help get a good
balance on the diff pair.
I've used the LL1660 and it's fine, also used LL1635, LL1621, LL1671.
I'm very curious about the cheap Edcor interstages - I'd guess they
have better bass - and a few people seem to like them. Have you looked
into those? They come in two sizes, and the values to try are probably
10k-10k or 15k-15k. Andy
Raymond Koonce
Hi Andy,
This amp has a SE 56 on the primary of the 124B. I'm using an input
transformer for some extra gain (a Newcomb, I don't have the model #
with me) ahead of the volume control, the wiper of which feeds the 56
grid. I'm using the 124B to feed the grids of the 71As with the CT
grounded. Really simple circuit and it sounds very good in the mids and
highs, but I'd like some more in the lower end. This would be a very
good treble amp for bi-amping.
I'm not familiar with the Edcor ITs. Thanks for the tip. I'll google them.
Best regards,
Raymond
Andy Evans
This may be the problem - surely the 124b isn't gapped for SE use?
>�I'm using the 124B to feed the grids of the 71As with the CT
> grounded>
I use it the other way round - CT to HT on the input, which is a diff
pair with CCS. We may be getting different effects, plus mine steps
down and yours steps up.
Andy
.
Raymond Koonce
DC with that. That might well be my problem. I do like the step up
though. Back to the drawing board!
Thanks for your input.
Best regards,
Raymond
Andy Evans
DC with that. That might well be my problem. I do like the step up
though. Back to the drawing board! >>
No - my amp is balanced PP all through. PP driver stage, diff pair
with CCs into 124b and then into PP output stage. I think it's a
question of getting the DC balance just right.
Andy
Andy Evans
Iain Churches
"wb" <archan...@yahoo.com> wrote in message
news:e382c$4867ce1e$471f6fc2$13...@ALLTEL.NET...
Thanks "wb" for bringing a ray of sunshine into this otherwise dark
and depressive Arny Kreuger dominated thread.
Iain
Arny Krueger
news:f5Ejk.40593$_03.1...@reader1.news.saunalahti.fi
> Thanks "wb" for bringing a ray of sunshine into this
> otherwise dark and depressive Arny Kreuger dominated
> thread.
...one that has been dead for a month.