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Help Identifying to39 transistor...private labeled.
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Davetheampguy:
Long shot.  Working on a Rivera Sedona Lite acoustic tube amp.  Second channel is out.  Signal traced second channel and found
shorted transistor..the first one in the channel.  Easy fix...if I can ID the transistor.  to39 i think.

Says Rivera 104-010  0745.  Guess its a jfet?   I have scoured for a schematic.  q103 on the circuit board.

Please help.  Have had no response from Rivera.

strawberry:
Any JFET should work if DC values are close enough

Pull out values from schematic easy

J104 (2SJ104)
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