info on amp design from harman kardon 75

[intensate]

Hello all.

I have been given a harmon karmon 75 amp in bad condition.
I was going to strip it for parts,But I like its power amp modules.

It looks an interesting design and I wondered if anyone hear can tell me more .
Its looks like a class a?

the transistors are.
q347/q348=2sd322 output

q346=2sc959m
q345=2sa606
q344=2sc815
q343=2sc853
q341/q342=2sc640

thanks

 

[rayma]

I have been given a harmon karmon 75 amp in bad condition.
I was going to strip it for parts,But I like its power amp modules.
It looks an interesting design and I wondered if anyone hear can tell me more .
Its looks like a class a?

Quasi-comp class AB output stage, about 100mA idle current.

I'd reduce the 330 Ohm output resistors to maybe 100 Ohms.

 

[intensate]

I am going to try it out latter .
I just need to connect up its psu and listen to it

 

[east electronics]

Quasi-comp class AB output stage, about 100mA idle current.

I'd reduce the 330 Ohm output resistors to maybe 100 Ohms.

what this supposed to mean ??output resistors ???

 

[rayma]

what this supposed to mean ??output resistors ???

For the headphones. There are 330 Ohm resistors in series with the headphone jack.