I have a pair of Audio Note TRANS-152 OPTs which are gapped for 90mA and 2.5K into 8 ohms. I was thinking of 300b but revised this idea to PSE 2a3s. I intend to use the biplate versions, or the biplate Russian 6C4C, which is a 6B4G.
The 6B4G data sheet states 250v and 60mA in SE, class A
http://www.mif.pg.gda.pl/homepages/frank/sheets/127/6/6B4G.pdf
It also states 325v and 40mA in PP, class AB1
I'd like to get somewhere around 45mA each tube, but with these biplates how high could I take the Anode-Cathode voltage? Any suggested operating points? Anybody tried out 2a3 in PSE?
Andy
The 6B4G data sheet states 250v and 60mA in SE, class A
http://www.mif.pg.gda.pl/homepages/frank/sheets/127/6/6B4G.pdf
It also states 325v and 40mA in PP, class AB1
I'd like to get somewhere around 45mA each tube, but with these biplates how high could I take the Anode-Cathode voltage? Any suggested operating points? Anybody tried out 2a3 in PSE?
Andy
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I intend to use the [...] Russian 6C4C
[...]with these biplates how high could I take the Anode-Cathode voltage?
I have some of these Russian tubes. The data sheet says the max is 360V (attached).
I put all 10 of mine, in turn, into a mono-block running at less than this and a couple of them had some initial 'pops' until they settled down. Maybe you want to burn-them in gently before exposing them to full B+ if you are planning to use a high voltage.
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