This is a power amplifier i bild 5 years a go.
it measers as follows :
Uout 14V 20hz 0,30% 25W bij 8ohm
Uout 14V 1kc 0,90% 25W bij 8ohm
Uout 14V 10kc 1% 25W bij 8ohm
Uout 2,8V 20hz 0,08% 1W bij 8ohm
Uout 2,8V 1kc 0,02% 1W bij 8ohm
Uout 2,8V 10kc 0,03% 1W bij 8ohm
R.out 20Hz tot 20kc 0,45ohm df =18 bij 8ohm
10V 8ohm 10hz -0,4db tot 200kc -3db
28db (0,6V =14volt out)
it is stil in use by a freind of mine in combination with Ariel (lynn olson)
it measers as follows :
Uout 14V 20hz 0,30% 25W bij 8ohm
Uout 14V 1kc 0,90% 25W bij 8ohm
Uout 14V 10kc 1% 25W bij 8ohm
Uout 2,8V 20hz 0,08% 1W bij 8ohm
Uout 2,8V 1kc 0,02% 1W bij 8ohm
Uout 2,8V 10kc 0,03% 1W bij 8ohm
R.out 20Hz tot 20kc 0,45ohm df =18 bij 8ohm
10V 8ohm 10hz -0,4db tot 200kc -3db
28db (0,6V =14volt out)
it is stil in use by a freind of mine in combination with Ariel (lynn olson)
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Good I recently was toying with some thing like that but run out off heatsink capability very quick also the inductors of the output stage where single, or did you used the same core for both - and + load? That can be interesting to tinker and may cancel some of the good harmonics if you are looking for an especific harmonic profile. 😎
The nice thing is that if you take one core fore both off the coils and connect them in opposite phase you dont magnetize the core white dc.
my choice for P fets is because you can than mount the fets direct whithout isolation on the heatsink. (you have to isolate the compleet heatsink then of corse).
my choice for P fets is because you can than mount the fets direct whithout isolation on the heatsink. (you have to isolate the compleet heatsink then of corse).