BEL 1001 repair info

[KevinC]

I am helping a friend troubleshoot and repair his BEL 1001 Mk I amplifier (he's an original owner!). It's clear that the 2N6284 NPN output transistor in one channel is shorted internally. They are still readily available, but I suspect that there is some matching that needs to be done to preserve performance at the highest level. However, with Richard Brown's passing last October, there appears to be no source of info (schematic, etc.) available. Anyone have any ideas?

Thanks!

[nigelwright7557]

A bit depends on what else has gone with the output transistor. I would be checking the driver transistors too.

If its just the output transistor then changing it and setting up DC offset and bias again is the way to go.