Author Topic: Transistors for Unicord Stage 65b Amp  (Read 234 times)


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Transistors for Unicord Stage 65b Amp
« on: May 26, 2019, 05:50:24 AM »
Hello. I'm trying to locate and purchase these TO-92 case audio transistors in a 1977 japanese made amp but even a google search does not recognize the numbers. Any help or suggestions? Thanks



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Re: Transistors for Unicord Stage 65b Amp
« Reply #1 on: May 26, 2019, 06:08:52 AM »
Try searching this;

2sC693    F7F
2sA640     E76
2sC1175    E7F
2sC536     G7C
2sA659     E6G

google search with "2sc693" brings up this;
It's common ,,they don't print the whole part on the device.
Leave off the the end 3,, they will turn up in a search.

Be aware that a lot of other Equivalent transistors will likely work.
The main thing is to find a device with similar specs.
Main things to note are;
Maximum Collector-Base Voltage |Vcb|: 40 V
Maximum Collector Current |Ic max|: 0.05 A
Maximum Collector Power Dissipation (Pc): 0.1 W
Alltransistor has a Cross Reference Search.  :tu:
HTH,, phil.



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