Identifying TO-3 w/HP house numbering

Curious Marc curiousmarc3 at gmail.com
Tue Oct 16 02:24:58 CDT 2018


Forgot to mention, I have a 2382A that works (affectionately known as the "Munchkin" terminal). I could measure some stuff in mine for comparison if that could help out. 
For the HP curious, the 2382A makes an appearance at the end of one of my videos:
https://youtu.be/GLkhcDAOVPo?t=19m50
It is very cute (I think) ;-)
Marc

> On Oct 16, 2018, at 12:08 AM, Curious Marc <curiousmarc3 at gmail.com> wrote:
> 
> Can't find it either in any of the X-ref lists I have. As you know already, 1854 are usually NPN transistors, but around these numbers I see mostly Darlingtons in my collection. So maybe that's what you have, and why the junctions would test weird.
> Marc
> 
>> On Oct 15, 2018, at 10:21 PM, Josh Dersch via cctalk <cctalk at classiccmp.org> wrote:
>> 
>> Hey all --
>> 
>> Got an HP 2382A terminal I'm attempting to resurrect.  I get no video, no
>> heater, no high voltage.  What I believe to be the horizontal output
>> transistor appears to be bad, but I'm not sure if this thing contains
>> internal diodes that might be throwing off my testing attempts.  It's
>> labeled "1854-0900."  Anyone know what this actually is?  (Anyone have a
>> service manual for this terminal?)
>> 
>> Thanks,
>> Josh


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