On Wed, 2020-06-17 at 11:27 -0400, William Donzelli wrote:
> They are indeed GEs! 188 is the clue.
>
Thanks! What is the secret decoder ring that tells you 188 means GE?
On Wed, 2020-06-17 at 13:24 -0400, William Donzelli via cctalk wrote:
> 5965 is a computer rated 12AV7 with better balanced cutoff
> characteristics, but generally worse for noise.
Darn. "Worse for noise" probably means I won't find audio nirvana
trying these in any of my amps. And there's a go
>
> Thanks! What is the secret decoder ring that tells you 188 means GE?
EIA manufacturer codes. These were often applied to private and house
branded labelled tubes. Other numbers are 274 for RCA, 280 for
Raytheon, 158 for DuMont, and so forth.
EIA codes were used for non-tube electronic parrot
> Darn. "Worse for noise" probably means I won't find audio nirvana
> trying these in any of my amps.
Most computer tubes are pretty bad for audio, even though there are
plenty of snake oil tube dealers that proclaim them as audio gold.
--
Will
An electronic parrot in the vacuum tube days? -- must have been very large!
On 22/06/2020 07:56, William Donzelli via cctalk wrote:
Thanks! What is the secret decoder ring that tells you 188 means GE?
EIA manufacturer codes. These were often applied to private and house
branded labelled tubes.
EIA codes were used for non-tube electronic parrots.
On Mon, 22 Jun 2020, Nigel Johnson via cctalk wrote:
An electronic parrot in the vacuum tube days? -- must have been very large!
E's not dead! Just slip a new valve in.
On 6/22/2020 5:58 AM, William Donzelli via cctalk wrote:
Darn. "Worse for noise" probably means I won't find audio nirvana
trying these in any of my amps.
Most computer tubes are pretty bad for audio, even though there are
plenty of snake oil tube dealers that proclaim them as audio gold.
--
