I'm servicing a Heathkit AR-1650 receiver. Blown output transistors in left channel. Looking for schematic and parts list.
One website who had the details wanted nearly 20 bucks for it.
A guy on another audio website had the same fault luckily he mentioned replacing the output devices with=
MJ21194/MJ21193 devices - he said----"very pleased with the results " .
Scrolling down I located a link on one of the posters posts for the AR-1650 pdf BUT you will have to join their website ----I didn't.
How to BIAS a Heathkit AR-1650 | Audiokarma Home Audio Stereo Discussion Forums
A guy on another audio website had the same fault luckily he mentioned replacing the output devices with=
MJ21194/MJ21193 devices - he said----"very pleased with the results " .
Scrolling down I located a link on one of the posters posts for the AR-1650 pdf BUT you will have to join their website ----I didn't.
How to BIAS a Heathkit AR-1650 | Audiokarma Home Audio Stereo Discussion Forums
Neither do I. Got in a scuffle with them over having my website URL in my signature line and decided to part ways with them 10 years ago.
I guessed those common On Semi parts would be the choice. I will have to pull one of the devices from the good channel and find out which is PNP/NPN on a curve tracer.
I found a manual on Vintagemanuals but they want $43 plus shipping. Price gouging!
I guessed those common On Semi parts would be the choice. I will have to pull one of the devices from the good channel and find out which is PNP/NPN on a curve tracer.
I found a manual on Vintagemanuals but they want $43 plus shipping. Price gouging!
Heathkit is back in business (very limited).
May be able to get schematic from them.
Shop | heathkit.com
May be able to get schematic from them.
Shop | heathkit.com
