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I'm looking at buying a get set go amplifier with the optional 300B output tubes. It puts out 5 watts with the 300B. The standard output tube is 6B4G.
http://www.parksaudiollc.com/gsg.html
http://www.diytube.com/phpBB2/viewtopic.php?t=1853&sid=e1749dab905d02b993c5e838e557a668
This particular amp uses James JS-6113HS, which are only 10 watt output transformers. It looks like 60 mA plate current and 410V plate voltage is what the 300B version is spec'd for. Questions:
1) do 300B tubes generally sound good at this plate voltage and current?
2) is a 10 watt OPT a good idea here even if the 300B is run conservatively? Will this sound good or stressed / distorted?
Follow Ups:
Nothing wrong with a 10 watt transformer for a 300b amp. However, most 10 watt transformers won't be the end all in the lower frequency area.
-G
Don't know if yr still looking. But, I would suggest you find an amp with a full size xfmr. It makes a big difference in the bass, and the overall sound is less stressed.
Look at the link. It doesn't look that easy with your transformer set up the way it is. Running a 300B at lower plate voltages also lowers power and distortion if you can use different OPs.
Observe, before you think. Think before you open your yap. Act on the basis of experience.
The power difference between the 6B4G and 300B in that amp are pretty small, I would build it for the 6B4G.
At lower power levels, the 10W transformer should perform well.
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