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IDHT Bias with Rod Coleman Filament regulator

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#21
Cagomat said:
I have been looking for an improved bias method on my D3a phono preamp to avoid the cathode capacitor.
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Two Cree SiC Schottky diodes in series in the cathode will give you ~1.6V bias in a much simpler and more compact manner, without a bypass cap. I use 4 in series under the 6E5P in my amps with excellent results.

I also use Coleman regs for my DHTs with great results but for cathode bias of an IDHT diodes are so much simpler and more compact. But have fun experimenting!
 
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