At your risk. A suitable fuse must be in series with any battery. Please take all other safety precautions.
Under preparation.
Instead of one 9 volt battery this is supplied by batteries of total 18V or 24v.
Instead of 2 stages this has 3 stages but without source resistor bypass capacitor.
Even more similar to the Heathkit class A 10W integrated electron tube amplifier. 1st stage has a 100K drain resistor, second stage a 220K drain resistor. 3rd stage will possibly have a 10K drain resistor, said stage driving through a coupling capacitor a 10 to 1 output transformer.
A 1M potentiometer will drive the 3rd stage.
The passive RIAA filter, all 4 time constants, is at the time being between 1st and 2nd stage.
No comments:
Post a Comment