Elrog 300B vs Takatsuki 300B tubes

Hi, Dracule1, we pm'ed about rectifier at another forum (I was not able to registered for the same user name). Anyhow, 5z4gy -> Cossor 53KU / WE422a -> WE274A/B & Takatsuki 274B. I am now using Takatsuki 274B and like it. No chance to compare it with WE's though.

As a point of information, the Big 7 is indicated at the Lampi site as being supplied with one of the following rectifiers. I've determined the filament currents listed for each tube from datasheets that can be found elsewhere on the web:

5C3S (filament current 3 amps +/- 10%)
Shuguang 274B (filament current 3 amps)
(Optional) EML 5U4G (filament current 3 amps)

Other tubes mentioned in Wyan's post just above:

5Z4 (filament current 2 amps)
Cossor 53KU (filament current apparently 2.8 to 3 amps)
WE 422a (filament current 3 amps)
WE 274A/B (filament current 2 amps)
Takatsuki 274B (filament current 2 amps)

Hope that helps. Regards,
-- Al

Wyan, thanks for reminding me. I forgot it was you in the other forum.

Charles1dad, for awhile I thought I had a bad set. I've gone direct to amp before with mixed results, but mostly positive. The Elrogs seem to be very sensitive tubes on many levels. But Elrogs in the GG DAC seem to have one of the most dramatic change in sound going direct to amp.

Thanks Al. I got the distinct impression from George at TubesUSA to stay away from rectifier tubes that draws more than 2 amps. The list of rectifiers recommended by George for the Elrog 300Bs I think draw no more than around 2 amps (5R4, 5R4GY, GZ34 and GZ37). I'm afraid to try my EML 5U4 (3 amps) with my Elrogs.