Limitation on 2a3 tubes

[DPetrini]

Hi all, can the stereomour II use all types of 2a3 like RCA grey or black plates ?Just to be sure before try.thanxs

 

[Paul Birkeland]

Yes.

 

[Tom-s]

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?).

 

[DPetrini]

Thanxs, which tubes i can use in stereomour II without modify It , that sounds Better than psvane 2a3c ?

 

[Paul Birkeland]

Try a pair of RCA bi-plates.