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| Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players Open-reel tape recorders, cassette recorders, 8-track players etc. |
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28th Apr 2015, 4:10 pm
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#1 |
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Pentode
Join Date: Dec 2005
Location: Dereham, Norfolk, UK.
Posts: 140
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Technics RS-B565 PXS Cap
Can anyone help with a circuit diagram of this Technics beast particularly around the large transistors Q606, 605, 604, 608?
I think these must be in the motor circuit. There are 3 transistors marked D2037 and 1 marked B1357. I could not find these in my Towers book so I am looking for any assistance you can give me. |
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28th Apr 2015, 4:11 pm
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#2 |
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Dekatron
Join Date: Jan 2005
Location: Oxford, UK.
Posts: 17,861
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Re: technics rs-b565pxs cap
Simple when you know, they're 2SD2037 and 2SB1357, which should be in your Towers (or online if not)
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28th Apr 2015, 5:28 pm
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#3 |
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Pentode
Join Date: Dec 2005
Location: Dereham, Norfolk, UK.
Posts: 140
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Re: technics rs-b565pxs cap
thanks Nick I did check in towers but only found the B1357. know this is a direct drive cassette deck and these four transistors are getting very hot but works ok for an hour or so and then the drive goes all to pot speeding up and slowing down
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28th Apr 2015, 8:59 pm
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#4 |
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Dekatron
Join Date: Jan 2005
Location: Oxford, UK.
Posts: 17,861
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Re: Technics RS-B565 PXS Cap
Some vague data on the other one here (if you've got your specs ready): http://pdf.datasheetcatalog.com/data...93/93256_2.pdf
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