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McMurdo · 5th Jan 2021, 1:09 am

Here's the driver board I think the OP is referring to, it's the power amp transistor driver board (2 boards for stereo).

Circuit ref. Q5 and Q6 (left and right).
Early boards use a TO-202 package, later ones a TO-220 package.

No clue as to the specs but I'm sure a jukebox forum would be lucrative. I suspect a TIP41C/TIP42C or other audio driver pair would do plus a bias check.

If the output transistors are 2N3055 and have failed, modern ones may oscillate and blow up without modification, eg base stopper.

5th Jan 2021, 1:09 am	#6
McMurdo Dekatron Join Date: Jun 2009 Location: Staffordshire Moorlands, UK. Posts: 5,274	Re: Help with a transistor id please Here's the driver board I think the OP is referring to, it's the power amp transistor driver board (2 boards for stereo). Circuit ref. Q5 and Q6 (left and right). Early boards use a TO-202 package, later ones a TO-220 package. No clue as to the specs but I'm sure a jukebox forum would be lucrative. I suspect a TIP41C/TIP42C or other audio driver pair would do plus a bias check. If the output transistors are 2N3055 and have failed, modern ones may oscillate and blow up without modification, eg base stopper. Attached Thumbnails __________________ Kevin