It has multiple minor fleas and the most confusing protection circuit ever (IMHO)
but I might need outputs. I took out SCR601 for protection (driven off a simple current sampler from the outputs) and the relay comes on after 4-5s seconds and stays on. using headphones I hear faint music one channel. no fuses ever went and it could be just the drivers went and outputs are ok (a tiny bit of DC offset on the speakers)
here are the originals:
2SD1110 120v, 7A, 80w, 14mhz
2SB849 - compliment
all in a TO3P case. Im only getting sparse data from semicon, no good datasheet.
using the parameters are a basis to mouser, Im kinda leaning at:
NJW0281G and NJW0302G: 250V, 15A, 150W 30Mhz (seems like overkill, but its meaty overkill?)
also, using tape out to test the tuner et al, I found on phono, lots-o-noise. Its using 2SC1222 differnetials and a 2SC750/2SC1222 amp stage for phone. are the 1222's on the kill list? easy sub, but still. or is it the input and output tants that are going haywire? (have normal subs for all)
but I might need outputs. I took out SCR601 for protection (driven off a simple current sampler from the outputs) and the relay comes on after 4-5s seconds and stays on. using headphones I hear faint music one channel. no fuses ever went and it could be just the drivers went and outputs are ok (a tiny bit of DC offset on the speakers)
here are the originals:
2SD1110 120v, 7A, 80w, 14mhz
2SB849 - compliment
all in a TO3P case. Im only getting sparse data from semicon, no good datasheet.
using the parameters are a basis to mouser, Im kinda leaning at:
NJW0281G and NJW0302G: 250V, 15A, 150W 30Mhz (seems like overkill, but its meaty overkill?)
also, using tape out to test the tuner et al, I found on phono, lots-o-noise. Its using 2SC1222 differnetials and a 2SC750/2SC1222 amp stage for phone. are the 1222's on the kill list? easy sub, but still. or is it the input and output tants that are going haywire? (have normal subs for all)