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McIntosh Driver Board Transistor Replacement
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Tim Schwartz
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Posts: 62
McIntosh Driver Board Transistor Replacement
wrote:
I have a MC2300 in for service with a bad driverboard and need help
locating suitable replacements for an PNP / NPN pair. They're marked
032 922 and 021 909. I can only find a NTE cross reference (and I'm
not going there if I can help it!), NTE297 and 298, respectively. Any
help is appreciated!
Eric
Eric,
The McIntosh part number a
132-021 for Q107 (or 108)
132-032 for Q109 (or 110)
The 132-021 is a 2N3569. The 132-032 is similar to a 2N3645 and
according to my McIntosh info, is an approved replacement.
Later, McIntosh used a MPS-A05 (132-171) and MPS-A55 (132-172) pair as
replacements.
Regards,
Tim Schwartz
Bristol Electronics
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