E88CC equivalent?
cschm...@bcit.bc.ca
Tom van der Laan
In article <4qannc$n...@chopin.bcit.bc.ca>, cschm...@bcit.bc.ca says...
>
>Would anyone know if there is an equivalent to an
>E88CC tube?
>
>Colin
>
Hi,
Besides the 6922, the 6DJ8 and the 7308 are also equivalents.
The ECC 189 is also very similar but with a slightly lower anode
impedance
Tom
Le Cleac'h Jean-Michel
In article <4qannc$n...@chopin.bcit.bc.ca>, cschm...@bcit.bc.ca says...
>
>Would anyone know if there is an equivalent to an
>E88CC tube?
Hello,
E88CC = 6922
transconductance = 12.5
mu = 33
internal resistance = 3000 ohms
(Vpk = 100V; Ip = 15mA; Vg1 = +9V)
Best regards
Jean-Michel Le Cléac'h, Paris, France
Frank Erskine
In article <4qannc$n...@chopin.bcit.bc.ca>, cschm...@bcit.bc.ca writes
>Would anyone know if there is an equivalent to an
>E88CC tube?
>
--
Frank Erskine
Sunderland
England
Kevin Deal
In article <4qannc$n...@chopin.bcit.bc.ca>, cschm...@bcit.bc.ca wrote:
>Would anyone know if there is an equivalent to an
>E88CC tube?
>
>
>cschm...@bcit.bc.ca
>
>
This family consists of 6DJ8/ECC88, 6922/E88CC, Cca, 7308/E188CC and to a
lesser degree the E288CC. I guess some folks like the 6KN8.
The 6922 is ruggedized and has low noise characteristics (according to the
Amperex tube manual...there are certainly some questionable 6922's out there).
The 7308 was designed for low microphonics and resistance to shock for use in
broadband amplifiers, airborne equipment, and oscilloscopes. Probably my
favorite personally, if you get real ones. There is a hi-end dealer in
Arizona that advertises them in Audiomart that are fakes. I would have bought
a bunch of them, but after asking some identifying questions, determined they
weren't JAN Amperex as he advertised. He didn't seem to care, and I'm sure
he's sold a bunch of them.
Cca's were suposed to be selected 6922's...I have seen the Cca reference on
7316 boxes....I wish I knew what it stands for.
Best Regards,
Kevin Deal
UPSCALE
Audio/Home Theater/Rare Tubes
(909) 931-9686 8AM-6PM PDT
Fine Tubes from Telefunken,
Amperex, NV Philips, Mullard
Claude Frantz
Ke...@UPSCALEaudio.com (Kevin Deal) writes:
>Cca's were suposed to be selected 6922's...I have seen the Cca reference on
>7316 boxes....I wish I knew what it stands for.
CCa is a type according to an ancient tube code used in Germany for
commercial communication type tubes. Other common types using this code
are e.g. C3m, C3g, C3o, D3a, F2a, etc... I ignore how this code should
be decoded.
Perhaps anybody here has more information on this subject.
--
Claude
(cla...@bauv106.bauv.unibw-muenchen.de)
The opinions expressed above represent those of the writer
and not necessarily those of her employer.
candr
Just out of curiosity I checked in the Electronic Universal
Vade-Mecum and saw that a "CCa" is a Siemens-manufactured
E88CC equivalent. Likewise the C3m, C3o, D3a, and F2a are all
Siemens-manufactured tubes, some with and some without
common equivalents. I have no idea how to decipher the
numbering code. It is certainly not obvious.
BTW, the famous Ed and Da tubes are part of this category.
Kevin, in your original post you talked about 7316's. I can't
find this type listed in any of my references. What is it?
Ray Parkhurst
Peter Braverman
> Kevin, in your original post you talked about 7316's. I can't
> find this type listed in any of my references. What is it?
>
> Ray Parkhurst
The 7316 is a 12AU7 equivalent, believed by many to be the best in a
generally sparse field. The 7316 was manufactured by Amperex, in both PQ
(Premium Quality) and Bugle Boy designations. I have heard sets of both,
and I cannot tell a difference between them, though some people seem to
prefer the Bugle Boys.
pb
Claude Frantz
candr <ca...@ix.netcom.com> writes:
>Just out of curiosity I checked in the Electronic Universal
>Vade-Mecum and saw that a "CCa" is a Siemens-manufactured
>E88CC equivalent. Likewise the C3m, C3o, D3a, and F2a are all
>Siemens-manufactured tubes, some with and some without
>common equivalents.
Most are manufactured by Siemens, but I have seen other ones
manufactured by Telefunken.
>I have no idea how to decipher the
>numbering code. It is certainly not obvious.
You are right, it is not obvious. I tried to decipher some codes
using the tube data vs. code. I could not find anything useful.
All the code beginning with "Z" are assigned to full wave
rectifier diodes, like in the common european code, e.g. EZ80.
>BTW, the famous Ed and Da tubes are part of this category.
Yes, they are, as well as Aa, Ba, Bas, Be, Bh, Bi, Cd, Ce,
Cf, C3b, C3c, C3d, C3e, C3f, Ec, E2b, E2c, E2d, E2e, Z2b, Z2c,
Z2e.
Kevin Deal
Does anyone know what Cca stood for? I know common knowledge states the Cca
is a 6922 equivelant, but I have some Amperex 7316 (a 12AU7 variant) with Cca
marked on the box along with the other numbers. Anyone have a tube manual
that discusses this??? It's not in the Amperex manual...
In article <claude.835604714@bauv111>,
cla...@bauv.unibw-muenchen.de (Claude Frantz) wrote:
>candr <ca...@ix.netcom.com> writes:
>
>>Just out of curiosity I checked in the Electronic Universal
>>Vade-Mecum and saw that a "CCa" is a Siemens-manufactured
>>E88CC equivalent. Likewise the C3m, C3o, D3a, and F2a are all
>>Siemens-manufactured tubes, some with and some without
>>common equivalents.
>
>Most are manufactured by Siemens, but I have seen other ones
>manufactured by Telefunken.
>
>>I have no idea how to decipher the
>>numbering code. It is certainly not obvious.
>
>You are right, it is not obvious. I tried to decipher some codes
>using the tube data vs. code. I could not find anything useful.
>All the code beginning with "Z" are assigned to full wave
>rectifier diodes, like in the common european code, e.g. EZ80.
>
>>BTW, the famous Ed and Da tubes are part of this category.
>
>Yes, they are, as well as Aa, Ba, Bas, Be, Bh, Bi, Cd, Ce,
>Cf, C3b, C3c, C3d, C3e, C3f, Ec, E2b, E2c, E2d, E2e, Z2b, Z2c,
>Z2e.
>
Best Regards,