What's the best EF86?
7mq...@my-dejanews.com
microphone. It's an EF86 type. I would appreciate
any opinions on what brand/type would sound best
in this application...
* Telefunken (Siemens)?
* Mullard (British made)?
* Amperex (Dutch made)?
* Bugle Boy? (Dutch made)?
...other?
Also, what is the difference in sound & reliability
(if any) between the various Telefunken versions?;
*Siemens
*Diamond bottom/no diamond
*Solid plate
*Mesh plate
-----------== Posted via Deja News, The Discussion Network ==----------
http://www.dejanews.com/ Search, Read, Discuss, or Start Your Own
dang...@earthlink.net
TFK EF806S, the specialy selected (by Telefunken) low noise, low
microphonic version of EF86.
Regards,
Dangerdave
tyy...@hkstar.com
probably sound better in many applications.
Tim
In article <36ab1164...@news1.rmi.net>,
KEVIN DEAL / UPSCALE AUDIO
tyy...@hkstar.com wrote in message <78fh8q$tvi$1...@nnrp1.dejanews.com>...
>The Gold Lion/GEC Z729 is always pretty well known. But I agree the EF806S
>probably sound better in many applications.
>
>Tim
I was offered non-diamond Telefunken EF806S.....I don't know who made them.
Has anyone tried them or have any input?
Regards,
Kevin Deal Voice: (909) 931-9686 Fax: (909) 985-6968 10-6 pst Mon-Sat
Upscale Audio 2504 Spring Terrace, Upland, California 91784
Precision Selected Rare Audio Tubes ***** Factory Authorized Dealer for:
Audible Illusions *** Balanced Audio Technology *** Sonic Frontiers *** B&K
Golden Tube Audio *** Anthem *** Presence *** Von Schweikert Research
Meadowlark *** PSB *** Eminent Technology *** Speakercraft *** Odyssey
Nordost Flatline *** Basis *** Benz *** Nitty Gritty *** Kimber Kable & more
tyy...@hkstar.com
Telefunken ECC803S, ECC802S and E88CC boxes with Telefunken marking before.
Tim
In article <78gjua$6v0$1...@nnrp02.primenet.com>,
-----------== Posted via Deja News, The Discussion Network ==----------
dang...@earthlink.net
I believe that there are some newly manufactured tubes floating around
Europe, that are billed as ersatz Telefunken "S" series. As I recall,
they are branded Siemens, Tesla, Valvo, etc.
I haven't tested or purchased any.
AFAIK, the Telefunken "S" series were regular production 12AU7, 12AX7,
EF86, that were specially tested and screened for low noise, and
labeled ECC802S, ECC803S, EF806S, respectively. In principle, you
could screen regular production tubes in the same way, and achieve
equivillant noise performance.
This is what some of the pro-audio guys do for their low-noise studio
mic applications.
The GE 6072A is often used in this way.
Regards,
Dangerdave
Steve Kelsay
dang...@earthlink.net
You have non- <> tubes that are branded Telefunken ECC803S?
That's kinda ominous. I wonder who rebranded them?
The rationale is obvious. Genuine TFK ECC803S sell for up to $HK3500
each (more than $500 US).
Regards,
Dangerdave
>On Mon, 25 Jan 1999 14:25:52 -0800 (PST), Tube-M...@webtv.net (Steve Kelsay) wrote:
> I agree with Tim. I have several Siemens and Telefunken brand E88CC
>and ECC803S tubes, and the tube construction appears identical and
>the Telefunken branded tubes show no <> mark in the tube button --- so,
>I believe the tubes are manufactured by Siemens.
>
> Steve Kelsay
DEMOSTENES A. Goksoyr
You should really try the Brimar 6BR7 and 6BS7 valves. These are
close equivalents to EF 86, but have a different pin-out and 6BS7 has
the grid on the top. Both are B9A valves, however. They are regarded
as similar or superior in performance to the EF 86.
Best regards,
Arnold Goksøyr
DEMOSTENES A. Goksoyr
N5850 Balestrand
NORWAY
Phone +47 5769 1340
Fax +47 5769 1267
e-mail arn...@sf.telia.no
More than 1800 different valves in stock. Plus: sockets,
transformers, caps, resistors and books about valves and
valve equipment. Many rare European valve types.
You will find it at my homepage: http://demostenes.vestdata.no
Steve Kelsay
Ned Carlson
>Hi Steve,
>
>You have non- <> tubes that are branded Telefunken ECC803S?
>
>That's kinda ominous. I wonder who rebranded them?
I dunno, but the Tesla 12AX7's would look ominously similar to
ECC803s if they've got gold pins.
Telefunken themselves rebranded a lot of stuff themselves,
I've even seen GE 6080's in what from what I could tell were
genuine Telefunken boxes.
Ned Carlson Triode Electronics "where da tubes are!"
2225 W Roscoe Chicago, IL, 60618 USA
ph 773-871-7459 fax 773-871-7938
12:30 to 8 PM CT, (1830-0200 UTC) 12:30-5 Sat, Closed Wed & Sun
<A HREF="http://www.triodeel.com">http://www.triodeel.com</A>
Tube and Tube Amp info on the net...<A HREF="http://www.triodeel.com/tlinks.htm"> The Big Tube Links Page!</A>
ThreeMile
12AX7 types were actually made at a secret space-based facility co-run by the
US, USSR, and Germany. That's how they got the superior vacuum seal which
results in superior performance! I know this is true because the men inside
the tubes told me so.
-name witheld for obvious reasons.
tyy...@hkstar.com
dang...@earthlink.net wrote:
> Hi Steve,
>
> You have non- <> tubes that are branded Telefunken ECC803S?
>
> That's kinda ominous. I wonder who rebranded them?
>
I believe they are branded by Telefunken itself! If this is done by others,
why bother to use E83CC? It is about the only tube matching the ECC803S spec.
> The rationale is obvious. Genuine TFK ECC803S sell for up to $HK3500
> each (more than $500 US).
>
Only USD450. But some of you should know that not all <> TFK ECC803S sound
the same. There are 5 versions of TFK ECC803S with <> bottom and one version
(with "oil based marking") sounds WORSE than early ribbed plate TFK ECC83,
which is 8 times cheaper.
Buyer beware !!!
Tim
> >On Mon, 25 Jan 1999 14:25:52 -0800 (PST), Tube-M...@webtv.net (Steve
Kelsay) wrote:
>
> > I agree with Tim. I have several Siemens and Telefunken brand E88CC
> >and ECC803S tubes, and the tube construction appears identical and
> >the Telefunken branded tubes show no <> mark in the tube button --- so,
> >I believe the tubes are manufactured by Siemens.
> >
> > Steve Kelsay
>
>
-----------== Posted via Deja News, The Discussion Network ==----------
tyy...@hkstar.com
Tube-M...@webtv.net (Steve Kelsay) wrote:
> In addition, he said that Valvo manufactured many of the ECC83 tubes
> for Telefunken, and he has Telefunken company test documents showing
> test results of Telefunken and Valvo
> ECC83's --- and, the test results are identical.
>
That is true. The early long plate Valvo ECC83 are excellent tube and no
worse than TFK made ECC803S. But they are even more difficult to find than
ECC803S as 99% of Valvo ECC83 I have seen are NOT made by Valvo but rebranded
tube made by Siemens or Amperex.
Tim
dang...@earthlink.net
The men in those tubes must be pretty small.
Are they green? I am having considerable problems of late with little
green men.
Regards,
Dangerdave
KEVIN DEAL / UPSCALE AUDIO
Steve Kelsay wrote in message <14720-36...@newsd-141.iap.bryant.webtv.net>...
He has all of his Father's Telefunken records, and he offered to send
me copies of test results, tube production run numbers (quanity) and
other ECC83 info regarding the dates and
quanity of bulk tubes purchased from other manufacturers and stamped
Telefunken. When I receive the English translation, I will post the
info in the newsgroup.
Far as the E83CC and ECC803S which I received --- the Siemens E83CC
tubes appear
identical to the Telefunken branded tubes, only some of the Siemens have
either a two digit number in the button, or nothing in the button, and
the Telefunken branded E83CC and ECC
803S tubes all have nothing in the button, just
smooth glass.
Yikes....real Tele ECC803S will look a bit different than the Siemens. Tele ECC803S look like 6922's....they have a frame grid construction, gold pins, and a diamond on the bottom.It would be great to get that info. Especially the batch codes for manufacturing...which are random as I have been told and all but impossible to decipher. Except for the factory.
ThreeMile
>>12AX7 types were actually made at a secret space-based facility co-run by the
>>US, USSR, and Germany. That's how they got the superior vacuum seal which
>>results in superior performance! I know this is true because the men inside
>>the tubes told me so.
>>
>>-name witheld for obvious reasons.
>
>The men in those tubes must be pretty small.
>
>Are they green? I am having considerable problems of late with little
>green men.
>
>Regards,
>Dangerdave
Danger -
No the men are actually a pleasant orange color. They are so small that
many mistake them for an electric glow. They do not cause problems as far as I
know, just a warm feeling inside.
ThreeMile
P.S.
Anyone who fails to see humor in these postings spends too much time
trying to determine who made their "Cornyphone (*) bottom ESP802X" tube. >8-}
Claude Frantz
(Steve Kelsay) wrote:
> I agree with Tim. I have several Siemens and Telefunken brand E88CC
>and ECC803S tubes, and the tube construction appears identical and
>the Telefunken branded tubes show no <> mark in the tube button --- so,
>I believe the tubes are manufactured by Siemens.
Is there an exclusive right of Telefunken for a <> mark in the tube
button ?
Claude Frantz
gins...@catskill.net
opinion, what comes closest (or, perhaps exceeds) the Teles?
David Ginsberg
tyy...@hkstar.com
and 10M Mullard 12AX7 and 10M Mullard 7025 are superior.
Tim
In article <78ol5r$8f9$1...@nnrp1.dejanews.com>,
David Crittle
little men actually trapped inside tubes. Check out some of the adverts
that GEC ran in the late 1950's Wireless World Magazine. They have some
engineer in a lab coat with a pencil and paper trying to work out a
problem. GEC claims that they can "We can get you out of a rectifier
problem". The fine print says "we know how you feel in there".
(see page 71, WW November 1959)
In article <19990127121735...@ng-ce1.aol.com>,
thre...@aol.com (ThreeMile) wrote:
--
david
retr...@bigpond.com
RHersh
In article <retrovox-280...@waip-a-001-pool-106.tmns.net.au>,
retr...@bigpond.com (David Crittle) writes:
>Speaking of men inside tubes, I can tell you for certain that I have seen
>little men actually trapped inside tubes. Check out some of the adverts
>that GEC ran in the late 1950's Wireless World Magazine. They have some
>engineer in a lab coat with a pencil and paper trying to work out a
>problem. GEC claims that they can "We can get you out of a rectifier
>problem". The fine print says "we know how you feel in there".
One of my instructors in electronics trade school (I was 16) told us that when
he was in the Navy they would tie a rope to his feet and lower him into
transmitting tubes to scrub the plates off or something. We bought it, of
course. Wonder what else he lied about.
Cheers
Ross H
Ross Hershberger
Farmington Hills, Mi
RHE...@AOL.COM
Claude Frantz
wrote:
>Telefunken themselves rebranded a lot of stuff themselves,
>I've even seen GE 6080's in what from what I could tell were
>genuine Telefunken boxes.
You are right Ned. I have such ones here.
Claude Frantz
Jim Cross
One of my instructors in electronics trade school (I was 16) told us
that when
> he was in the Navy they would tie a rope to his feet and lower him into
> transmitting tubes to scrub the plates off or something. We bought it, of
> course. Wonder what else he lied about.
> Cheers
> Ross H
One of the tubes in my collection that I prize highly is a presentation
piece given to a good friend on retirement. My friend Leo GIbbs worked
at Wright-Patterson AFB and supervised tube R+D for the Airforce. When
he retired Amperex presented him with a special tube that has his
retirement date on the outside. I call the tube a "pennytode" because
one of the regular plates has been replaced by a shiney Lincoln cent of
the appropriate year.
Jim Cross - Vacuum Tubes, Inc.
http://www.cinternet.net/~vactubes
email to vact...@cinternet.net
Check us out for new, used, audio, antique, and collectable types.
Vacuum Tubes, Inc.
3246 Floridale Lane
Cincinnati, OH 45239-6203
stewart ono
they would tie a rope to his feet and lower him into
>>transmitting tubes to scrub the plates off or something. We bought it, of
>>course. Wonder what else he lied about.
>
>USN uses are about the size of telephone poles. And some gear they use
>has waveguides the size of air-conditioner ducts.
I talked to an RF engineer three years back (maybe four): told me he was on
the way to Kwajalin Island to set up an advanced warning radar unit which
used 4 tubes over 6' tall. Water cooled and ran over 20KV on the plates. I
don't think any one will be scrubbing those. Also mentioned that they cost
the military over $250K each....Who says they don't know how to build tubes
in the US anymore....
Stu
Ned Carlson
>One of my instructors in electronics trade school (I was 16) told us that when
>he was in the Navy they would tie a rope to his feet and lower him into
>transmitting tubes to scrub the plates off or something. We bought it, of
>course. Wonder what else he lied about.
A couple of Navy techs who post on AGA stated that certain tubes the
USN uses are about the size of telephone poles. And some gear they use
has waveguides the size of air-conditioner ducts. If the telephone
pole tubes are aircooled and have an external anode, then, sure, it's
not *inconcievable* they'd need to be cleaned off on occasion. But I
still think he made that up.
Ned Carlson
>INMO the Telefunken ECC 803S is the best '12AX7' I've ever heard. In your
>opinion, what comes closest (or, perhaps exceeds) the Teles?
>
>David Ginsberg
Well, a few years ago I peddled the Tele ECC803's I had and
kept the Teslas. I can't absolutely say *no one* would hear the
diff, but in my stuff, there just wasn't $400 worth that I could hear.
Your mileage may vary.
Ralph and Diane Barone
Jim Cross <vact...@cinternet.net> wrote:
>RHersh wrote:
>One of my instructors in electronics trade school (I was 16) told us
>that when
>> he was in the Navy they would tie a rope to his feet and lower him into
>> transmitting tubes to scrub the plates off or something. We bought it, of
>> course. Wonder what else he lied about.
>> Cheers
>> Ross H
> RHE...@AOL.COM
>
>One of the tubes in my collection that I prize highly is a presentation
>piece given to a good friend on retirement. My friend Leo GIbbs worked
>at Wright-Patterson AFB and supervised tube R+D for the Airforce. When
>he retired Amperex presented him with a special tube that has his
>retirement date on the outside. I call the tube a "pennytode" because
>one of the regular plates has been replaced by a shiney Lincoln cent of
>the appropriate year.
>
>Jim Cross - Vacuum Tubes, Inc.
>http://www.cinternet.net/~vactubes
>email to vact...@cinternet.net
>Check us out for new, used, audio, antique, and collectable types.
>
>Vacuum Tubes, Inc.
>3246 Floridale Lane
>Cincinnati, OH 45239-6203
When we're disassembling and reassembling the mercury thyratrons at work,
the electricians do climb partway inside the anode porcelains to remove the
grids. It's a tight fit, but we do it.
Mike Thompson
>
> In article <retrovox-280...@waip-a-001-pool-106.tmns.net.au>,
> retr...@bigpond.com (David Crittle) writes:
>
> >Speaking of men inside tubes, I can tell you for certain that I have seen
> >little men actually trapped inside tubes. Check out some of the adverts
> >that GEC ran in the late 1950's Wireless World Magazine. They have some
> >engineer in a lab coat with a pencil and paper trying to work out a
> >problem. GEC claims that they can "We can get you out of a rectifier
> >problem". The fine print says "we know how you feel in there".
>
> he was in the Navy they would tie a rope to his feet and lower him into
> transmitting tubes to scrub the plates off or something. We bought it, of
> course. Wonder what else he lied about.
> Cheers
> Ross H
Did he have any friends named Monica?
tom schlangen
> I know for a fact that all the high grade 12AX7 types
> were actually made at a secret space-based facility [...]
> That's how they got the superior vacuum seal which
> results in superior performance!
;-)
i once worked for a company (in germany) which claimed
their pumps to generate better vacuum than outside
spacelab in orbit.
no big deal, since vacuum is quite weak in the regions
orbital stations use to orbit in. it could easily be
topped with quite off-the-shelf turbo-molecular pumps,
not to speak of cryogenic traps or ion/getter-pumps.
in orbit, the vacuum outside the station or ship is
used as a pre-vacuum for these pumps.
tom
--
The opposite of a correct statement is a false statement. But the
opposite of a profound truth may well be another profound truth.
- Niels Bohr