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-   -   IBM 5100 Power supply old transistor ID? (https://www.vintage-radio.net/forum/showthread.php?t=165907)

Pitou7645 20th Apr 2020 12:43 pm

IBM 5100 Power supply old transistor ID?
 
1 Attachment(s)
Hello,

I have an IBM 5100 that has only the +5v and -5v that is working.

I have open the power supply and would like to know the equivalent part number (probably IBM number) for this transistor (see picture).

This Motorola might be very similar to this one (Texas Instruments T484) discussed in this thread here:

https://www.vintage-radio.net/forum/...d.php?t=123369

Thank you very much.

Pitou!

TonyDuell 20th Apr 2020 12:57 pm

Re: IBM 5100 Power supply old transistor ID?
 
It probably is a transistor, but I've come across TO3 packaged devices in old computer power supplies (DEC in my case) which are double diodes, anodes to the 2 pins and common cathode to the case. Used as a biphase rectifier in the obvious way.

Pitou7645 4th May 2020 1:02 am

Re: IBM 5100 Power supply old transistor ID?
 
Just FYI, 2N6545 works fine.


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