Elrog 300B vs Takatsuki 300B tubes

Thanks Wyan. BTW, what rectifier tube did you use in the Lampi with the Elrogs?

Dracule1,
I'm glad that you are able to finally appreciate the excellence of these Elrog 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.