In the link thread, you mentioned the tracking bias like EFB was well-known but little used, could you please provide some references, schematics, etc.? I can only think of the Brook ABC off the top of my head...
TIA,
jaz
In the auto bias thread Merlin posted, there is a link to a pdf file.
http://www.diyaudio.com/forums/tubes-valves/274253-auto-bias-vs-manual-bias-vs-efb.html#post4324232
Page 7 starts a detailed description, although the author is using a negative regulator to generate a positive voltage, it's a little confusing.
http://www.diyaudio.com/forums/tubes-valves/274253-auto-bias-vs-manual-bias-vs-efb.html#post4324232
Page 7 starts a detailed description, although the author is using a negative regulator to generate a positive voltage, it's a little confusing.
I'm looking for examples of other tracking bias designs, not the EFB, in fact, not really any design using SS parts or MPC...
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Constant current using LM317. Simple resistor. Resistor with bypass capacitor in parallel. These are the only ones i can think of.
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