McIntosh Driver Board Transistor Replacement
On Feb 19, 7:26 am, Tim Schwartz wrote:
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
Thanks Tim. I appreciate the info. All the major part houses list
the MPSA05 as a direct replacement for a 2N3569. Furthermore, the
MPSA05 has been superseded by MPSA06. I'll give the 06/56 a try
before searching for the old parts.
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