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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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SET Asylum Single Ended Triodes (SETs), the ultimate tube lovers dream. |
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In Reply to: RE: OPT for 2A3/300B design posted by Jim Doyle on July 10, 2011 at 20:42:48:
for low freq amp, try to find an OPT with primary inductance of 20Hy plus (30Hy would be better). whether 2A3 or 300B (I'd opt for the 300Bs greater power)locate your least high order distortion operating point (there are several posts here in AA on that, Paul Joppa's, Thorsten Loesch's etc.., or you can go to WE website for tabulations)and since you're on the DIY route, use the lowest Z out driver/configuration, with enough muscle to drive the final/power tube (1mA, 1M plate out tubes need not apply).
and yes, your intended service (low freq amp), requires a stiff power supply (voltage doesn't waver whatever the material you modulate with)
enjoy.
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Follow Ups
- RE: OPT for 2A3/300B design - GTCharlie 20:32:48 07/11/11 (1)
- RE: OPT for 2A3/300B design - masterofdisaster 20:13:17 07/13/11 (0)
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