Re: Spectroacoustic 500 Amplifier Scematics/Repairs

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Posted by Keith Scheuermann ( on October 09, 2003 at 20:25:19:

In Reply to: Hello N.W. Audio folks and TAPCO-ites!! posted by Bob Gudgel on September 13, 2000 at 19:07:46:

: I have an old Spectroacoustics 500 Audio Amp that was fully functional until recently when a pair of the Output Power Transistors blew. I have been unable to find out what the modern replacement transistors are or even what the old ones were. They are marked with the designation 105-0068 but no manufacturer or date.
If you can help me find out either the schematics/ parts numbers/manufacturer etc. for this Amp it would be greatly appreciated.

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