Learn techniques!

ADJUSTABLE BIAS CONVERSION - How to convert to adjustable bias. Lot's of good techniques.

Adjustable Bias Conversion
Adj. Bias VG$3.00
final notes on web page

Dan's Legendary Book "Inside Tube Amps" is now available on Amazon/Kindle

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Torres Engineering

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Roseville CA 95747

this is not a "walk in" shop

I am retired due to illness, sorry

in business 35 years