So I should abandon the Japanese tradition such as this circuit : Japanese kt120 in triode
Focus on having a healthy class A and healthy AB and ultralinear
Focus on having a healthy class A and healthy AB and ultralinear
so good , kronzilsas are for the real adventurer .So...
I will keep what I have already have like circuit except maybe redo a little the input tube...
Basic building blocks :
5K Output transformer 50% UL (80W -3db 35hz), feedback around 10-15 db
Full bridge exotic diodes going to around 50-100 uf , voltage peak unknown
Power Transformer : Hammond 278X , 230ma 800vct, 5v 3A, 6.3V 6A,
Main power supply Choke Hammond 193J 200ma 10H
Bias Transformer: some small thing around 90vac can't remember
CCS negative supply transformer with dedicated heating filaments? : Hammond 262D6 120V 54ma
Thinking of regulating the power supply of input and LTP...
Input tube 6sn7gt, 4ma
ecc99 LTP with e182cc as ccs. 30ma (I know this is a lot of waste)
Voltage and parameter of output tubes: 70ma 520V
Filaments to DC or not DC that is also the question
Matching loudspeakers, 3 ways closed , 91db 1m 1v
I will keep what I have already have like circuit except maybe redo a little the input tube...
Basic building blocks :
5K Output transformer 50% UL (80W -3db 35hz), feedback around 10-15 db
Full bridge exotic diodes going to around 50-100 uf , voltage peak unknown
Power Transformer : Hammond 278X , 230ma 800vct, 5v 3A, 6.3V 6A,
Main power supply Choke Hammond 193J 200ma 10H
Bias Transformer: some small thing around 90vac can't remember
CCS negative supply transformer with dedicated heating filaments? : Hammond 262D6 120V 54ma
Thinking of regulating the power supply of input and LTP...
Input tube 6sn7gt, 4ma
ecc99 LTP with e182cc as ccs. 30ma (I know this is a lot of waste)
Voltage and parameter of output tubes: 70ma 520V
Filaments to DC or not DC that is also the question
Matching loudspeakers, 3 ways closed , 91db 1m 1v
Methinks the Hammond 193J reactor you plan to use could cause some sag on peaks, and even struggle at idle, unless you plan to use one per channel. Sorry if I missed that. I don’t know you planned PS schematic, but personally I would choose an inductor with higher current and lower inductance. Such high inductance does not buy you much with a PP amplifier, especially if you regulate the input and LTP supplies.
That circuit is pretty wild. An LM317 driving a third KT120 to bias the output tubes.