Limitation on 2a3 tubes

DPetrini · 5213

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Offline DPetrini

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on: July 08, 2023, 09:29:46 PM
Hi all, can the stereomour II use all types of 2a3 like RCA grey or black plates ?Just to be sure before try.thanxs

Daniel
Good hand at solder , badhead in electronics

Offline Paul Birkeland

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Reply #1 on: July 09, 2023, 04:46:28 AM
Yes.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Offline Tom-s

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Reply #2 on: July 09, 2023, 06:55:36 AM
Should be mentioned that early 1935-1936 "monoplate" 2A3 can be used in Stereomour and I wouldn't recommend using them in a stock SII. I wanted I'd recommend dropping the B+ voltage/limit the cathode dissipation and use a slow heater start up for longevity (maybe with the DC heater upgrade from Bottlehead?).


Offline DPetrini

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Reply #3 on: July 09, 2023, 09:53:56 AM
Thanxs, which tubes i can use in stereomour II without modify It , that sounds Better than psvane 2a3c ?

Daniel
Good hand at solder , badhead in electronics

Offline Paul Birkeland

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Reply #4 on: July 09, 2023, 10:25:22 AM
Try a pair of RCA bi-plates.

Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

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