ANOTHER AMP QUESTION ON DRIVING A AMP
Ripsy
LAFFEYETE 250.2 TUBES KEYS 10 SWINGS 60
AND A MODV+ SOLID STATE..WHAT WOULD YOU RECOMEND?
I WAS THING ABOUT JUST STAYING WITH THE TUBES?
THANKS
STEVE
dennis W. Ostrowski
Either will work.
Both are 'dirty'.
Why not drive the Phanthom directly, as it was
designed to be driven?
Dennis
#12
Sean
work very nicely into a 10 or 12 tuber. Keep the carrier down
and you'll see some BIG numbers as long as the tubes and
transformers are healthy. If you load up the carrier, the power
supply section gets loaded down and won't do quite as much. Sean
>
Ripsy wrote in message
<19981202113054...@ng-cg1.aol.com>...
Mobile 51
>work very nicely into a 10 or 12 tuber. Keep the carrier down
>and you'll see some BIG numbers as long as the tubes and
>transformers are healthy. If you load up the carrier, the power
>supply section gets loaded down and won't do quite as much. Sean
>>
I have afriend who drives his 10 tube Phantom with a modulator. I was about 80
miles away from him on mobile, using a ModV, driving a Ts dx500 and he could
hear me and I could hear him, then he turned on the Modulator, and the Phantom
really came to life! I would not have beleived the difference in modulation. He
told me the same thing when I turned my ModV off at that difference. He said my
audio was too weak at that distance from my mobile, until I turned the ModV
back on! They make a big difference over 20 miles of distance.
Sean
2100 watts peak just by hitting it with a JB12. This was done on
the bench at Wawasee Electronics using one of my Phantoms that
had brand new tubes in it. I didn't believe the difference
either, but I saw it with my own eyes. Sean
>
Mobile 51 wrote in message
<19981204020545...@ng-ch1.aol.com>...
Charles Davis
bigf...@megsinet.net says...
> I have watched a 10 tube phantom go from 1300 watts peak up to
> 2100 watts peak just by hitting it with a JB12. This was done on
> the bench at Wawasee Electronics using one of my Phantoms that
> had brand new tubes in it. I didn't believe the difference
> either, but I saw it with my own eyes. Sean
I used to drive a D&A Maverick with a JB150. It was scary what
that little amp did.
--
Charles
<<<I'm the NRA>>>
dennis W. Ostrowski
>
> I have watched a 10 tube phantom go from 1300 watts peak up to
> 2100 watts peak just by hitting it with a JB12. This was done on
> the bench at Wawasee Electronics using one of my Phantoms that
> had brand new tubes in it. I didn't believe the difference
> either, but I saw it with my own eyes. Sean
I think it's time for your periodic 'REALITY
CHECK' Sean!
Dennis
#12
PAINKI6669
Had a jb 150 superjewel myself.REwired the phantom so as everything was a final
and drove the superjewel into a polomar 300A(on low side so as to bypass the
2 driver tubes into the newly rewired 12 tuber Phantom.I would dead key the
phantom about 750 on a bird .and just let her rip.I defantly always had enuff
drive.grin.Dang that was 5 or 6 years ago atleast.I finally learned that
transisters
are far better than on a base.Run a 18 volt battery sys and a large battery
charger
on a footpedal.MUHAHAHA
charle...@worldnet.att.net (Charles Davis ) writes:
>I used to drive a D&A Maverick with a JB150. It was scary what
>that little amp did.
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oOOo-(_)-oOOo
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Bump IT LIST:
Icecoldnyc
Dennis#12
Sean
TollFree/Shadow
Bills2way
Bill Eitner
Brass
Mobil51
Palerider
McTurner
Tra1n
IPO
Cookie
Tnom
Andy
Sean
Kenny's bench. He was the one that suggested it to me, so we
tried it out right there. Sean
>
dennis W. Ostrowski wrote in message
<36685420...@lucent.com>...
dennis W. Ostrowski
>
> Think what you want, but like I said, I watched this happen on
> Kenny's bench. He was the one that suggested it to me, so we
> tried it out right there. Sean
He must have had his timing on the "test","test",
"test", "test", sequence just right so he could
maximize the ballistic overshoot of his meter
then!
Dennis
#12
Sean
hitting about 2300 peak like that. I told him to hold it on a
steady tone and it held at appr. 2100. Sean
>
dennis W. Ostrowski wrote in message
Toll Free
Dulaney did make nice boxes, though. I love my wifes Maverick.
Toll Free
Sean wrote in message <7491us$758$1...@news.megsinet.net>...
>I have watched a 10 tube phantom go from 1300 watts peak up to
>2100 watts peak just by hitting it with a JB12. This was done on
>the bench at Wawasee Electronics using one of my Phantoms that
>had brand new tubes in it. I didn't believe the difference
>either, but I saw it with my own eyes. Sean
>>
PAINKI6669
Dam Im rubbing off on everybody hahahaha.Im creating monsters
hahahaha.
"Toll Free" <toll...@tollfreecb.bigradios.com> writes:
>Put it on a spec an and see how many of those watts where on freq Sean.
>
>Dulaney did make nice boxes, though. I love my wifes Maverick.
>
>Toll Free
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dennis W. Ostrowski
>
> HA HA HA !!! He initially tried that one on me !!! It was
> hitting about 2300 peak like that. I told him to hold it on a
> steady tone and it held at appr. 2100. Sean
I have a $20.00 with your name on it that says
'show me'!
Dennis
#12
Sean
be able to do just that if I ever dug through all of that stuff
and had time to set it all up again. Sounds like another project
to add to the list !!!!! Sean
>
dennis W. Ostrowski wrote in message
dennis W. Ostrowski
>
> seeing as how I have Kenny's complete bench in my basement, I may
> be able to do just that if I ever dug through all of that stuff
> and had time to set it all up again. Sounds like another project
> to add to the list !!!!! Sean
Why would you need to use Kenny's bench?
Something 'special' going on there?
Besides; I thought the deal of me not bidding
against you for it was so Kenny would be able to
get it back again......
What happened there?
Dennis
#12
Sean
Man", threw a "munky" wrench into the works. Even after he
accepted a deposit on the building towards rent and he had given
me a lease to review, he decided to back out of the deal. This
left me with no place to store the equipment or operate out of.
I had to do some fancy footwork just to get that equipment out of
there and the only reason that Dan cooperated with that is
because Kenny called him and spoke to him about it. I also had
intentions of having my brother move out to Indiana and run that
shop. The fact that he was hired at a Union shop shortly after
the auction didn't help much. Making $18 an hour to start with
full benefits was pretty hard to compete with. With nowhere to
operate out of and nobody to oversee the operation, it put a big
damper on my plans.
As to the "special" things that were taking place on Kenny's
bench, they are no more special than the readings that others
have trouble duplicating off of either of our benches. That's
why I have tried to keep my setup as simple as possible to
minimize ANY possible chances of having something go haywire or
alter the readings. It doesn't get any simpler than the amp
feeding a piece of 213 to the wattmeter to another piece of 213
to the dummy load. When checking input swr of the box, I use a
double male connector and directly attach a Bird 43 with a 10
watt slug to the input of the amp under test. I am a firm
believer of the "KISS" theory and try to practice it as much as
possible. Sean
>
dennis W. Ostrowski wrote in message
dennis W. Ostrowski
>
> That was the original plan, but the landlord, "Dan the Rat Shack
> Man", threw a "munky" wrench into the works. Even after he
> accepted a deposit on the building towards rent and he had given
> me a lease to review, he decided to back out of the deal. This
> left me with no place to store the equipment or operate out of.
> I had to do some fancy footwork just to get that equipment out of
> there and the only reason that Dan cooperated with that is
> because Kenny called him and spoke to him about it. I also had
> intentions of having my brother move out to Indiana and run that
> shop. The fact that he was hired at a Union shop shortly after
> the auction didn't help much. Making $18 an hour to start with
> full benefits was pretty hard to compete with. With nowhere to
> operate out of and nobody to oversee the operation, it put a big
> damper on my plans.
>
> As to the "special" things that were taking place on Kenny's
> bench, they are no more special than the readings that others
> have trouble duplicating off of either of our benches. That's
> why I have tried to keep my setup as simple as possible to
> minimize ANY possible chances of having something go haywire or
> alter the readings. It doesn't get any simpler than the amp
> feeding a piece of 213 to the wattmeter to another piece of 213
> to the dummy load.
Then why would you need 'Kenny's' bench so show
me those numbers you quoted on that D&A Panthom
amp?
> When checking input swr of the box, I use a
> double male connector and directly attach a Bird 43 with a 10
> watt slug to the input of the amp under test. I am a firm
> believer of the "KISS" theory and try to practice it as much as
> possible.
I do too but I do not see many folks connecting
the back of their radio directly to the amp by
using a double male connector; so I use a standard
3 foot jumper and measure the SWR at the input to
the jumper.
I figure that is more representitive of a typical
hook up.
That's my version of KISS as opposed to your
version of FUBAR (also a commly used military
term).
Dennis
#12
PS.
Before you key all hyped up; I was just joking on
the FUBAR.
I understand that you are trying to do the best
you can; it's just that our opinions differ on
where to measure the input VSWR of an amplifier.
I agree that if the input VSWR is FLAT, there
should be no difference, and maybe the best way to
do the measurement is by using a switchbox where
we can switch from one to the other; but if it is
going to be less than perfect, I want it to look
it's best with the jumper in line because that's
the way the customer will eventually be using it!
Sean
What I meant is that each of us has what we consider to be a
"tuned" bench. What reads on Kenny's bench compared to what it
reads on yours and then mine might be different on all three for
several reasons. The point is that a specific meter reading is
only valid in that specific system. When used as a reference
within that system, it makes for accurate comparisons between
components. As impedances and reflections change, so will the
results to some extent. That's why some people have a hard time
duplicating results that we might see on our benches when using
those same pieces in their actual installations.
Kenny's bench was set up more like yours than mine, with feeds
for his scope and a couple of different meters in line with
multiple patch cords. I have tried to set mine up as simple as
possible.
I will be redoing my bench very soon and will be using the large
Coaxial Dynamics meter when I set it back up instead of the meter
that I currently use. I have recently replaced my dummy load,
which has also shown to be less reactive than the old one and
should give me more accurate readings. I will also be replacing
all of my jumpers with new ones and resonating the whole system.
I am hoping that this results in more consistent readings with
others, both here on the NG and locally. Sean
>
dennis W. Ostrowski wrote in message
Volv98
please let me no thanks a lot.darrell.
Silly813
mine has been going strong for 3 years now,
no problems. Better setup than a 667
Professor
--
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Professor
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Silly813 <sill...@aol.com> wrote in message
news:19981221003026...@ng155.aol.com...
:>can you tell about how long the 500 will last driving it with a v mod.
RUXN
hummmmm.......
painkiller,based on previous experience,whats your comment's on that.........
PAINKI6669
667 is better than a 500 but Dont ever try to keydown with me using one.
I still have the watergate.I cut his lips off to the teeth remember that.HAHAHA
Remember thats when the feed on the alternator blew off hehehe.Had to key with
him on just my batteries.My favorite words on the " Watergate"
"All I heard was pain" hahaha
ru...@aol.com (RUXN) writes:
>hummmmm.......
>painkiller,based on previous experience,whats your comment's on that.........
>
>
||||||
RUXN
>I still have the watergate.I cut his lips off to the teeth remember
>that.HAHAHA
>Remember thats when the feed on the alternator blew off hehehe.Had to key
>with
>him on just my batteries.My favorite words on the " Watergate"
>"All I heard was pain" hahaha
>
thats your side,tehehehe,anyway,that was a badass
babydriver....................
Toll Free
watts, whereas the mod V+ is about a hundred!
Toll Free
Professor wrote in message <6Orf2.355$ya2....@news14.ispnews.com>...
>:no problems. Better setup than a 667
>
>