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Old 15th March 2007, 12:59 AM   #1
muizel is offline muizel  Netherlands
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Default Audio Research output transistors

Hello,

I just got an Audio Research D 100B amplifier with some bad output transistors. They look like Motorola's in TO3 Can and I would very much like to know witch type they are .

Your help would be very welcome.

Regards René.
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Old 15th March 2007, 01:50 AM   #2
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Here's the schematic on the Audio Research database (not related to Audio Research, but an invaluable tool nonetheless):

http://www.arcdb.ws/D100/ARC_D100B_schematic1.gif

My guess is that you could probably use MJ15003 and MJ15004 -- I have a similar D-120 with those proprietary opamps -- one channel is shot -- will get to fix one of these day.
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Old 15th March 2007, 08:56 AM   #3
muizel is offline muizel  Netherlands
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Quote:
Originally posted by jackinnj
Here's the schematic on the Audio Research database (not related to Audio Research, but an invaluable tool nonetheless):

http://www.arcdb.ws/D100/ARC_D100B_schematic1.gif

My guess is that you could probably use MJ15003 and MJ15004 -- I have a similar D-120 with those proprietary opamps -- one channel is shot -- will get to fix one of these day.
Thanks jackinni,

So your guess is that they are the good old MJ15003/4, I shall order them today and try to get the amp running again.

Regards René.
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