6R3S SE amp maybe
Posted: Thu Dec 15, 2011 12:47 pm
I have a spare set of transformers (see below). There was an idea of making a second Clementine using 807, though the transformer may be a little on the small side. I have a ECL82-STC that I can recirculate.
I also have some Russian 6R3S (6P3C in Russian) a dual beam tetrode rated 20W Pa/half. This would give me a two tube 4-5W amplifier.
The problem is that the cathodes are connected to each other internally so I just have to use fixed bias.
I just wonder if there could be any problems using this twin tube with fixbias as a stereo amp.
Tube data:
http://www.tubes.ru/techinfo/HiFiAudio/6r3s-1.html
http://www.russiantubes.com/prop.php?t=12&p=278
OP transformers:
5K 5W OP
Data power transformer
Alt #1:
Secondaries: 2*270 V 0,12 A
2* 50 V 0,12 A
6,3 V 2 A
6,3 V 5 A
Alt #2:
2*270 V 0,2 A
2* 50 V 0,2 A
6,3 V 2 A
5 V 3,5 A
6,3 V 7 A
I also have some Russian 6R3S (6P3C in Russian) a dual beam tetrode rated 20W Pa/half. This would give me a two tube 4-5W amplifier.
The problem is that the cathodes are connected to each other internally so I just have to use fixed bias.
I just wonder if there could be any problems using this twin tube with fixbias as a stereo amp.
Tube data:
http://www.tubes.ru/techinfo/HiFiAudio/6r3s-1.html
http://www.russiantubes.com/prop.php?t=12&p=278
OP transformers:
5K 5W OP
Data power transformer
Alt #1:
Secondaries: 2*270 V 0,12 A
2* 50 V 0,12 A
6,3 V 2 A
6,3 V 5 A
Alt #2:
2*270 V 0,2 A
2* 50 V 0,2 A
6,3 V 2 A
5 V 3,5 A
6,3 V 7 A