Recently, Somebody Somewhere wrote these words
> Anyone got _anything_ on these?
>
>
> These are venerable transistors in a TO5 can. The board is a Siemens
> part, which they have made 'obsolete' without replacing it. This is
> hardly surprising, as the devices are batch dated '6940'
>
> The board is basically a set of interconnected discrete bipolar logic
> gates, with some intermittent fault. I can find huge gain mismatches,
> and I want to replace the low gain devices.
>
>
Can I at this stage ask anyone hoarding transistor data books from
_way_ back to have a look for this beast. It's in a TO5 can, and the tag
is at the collector, afaict.
Full information is as follows:
SGS
SST117/1 4(or L)6949
Apparently the SST113 is a Jfet... I thought they were NPN Bipolar. The
board looks old enough for the 1969 batch date.
--
With best Regards,
Declan Moriarty.
--
Author: Declan Moriarty
INET: [EMAIL PROTECTED]
Fat City Hosting, San Diego, California -- http://www.fatcity.com
---------------------------------------------------------------------
To REMOVE yourself from this mailing list, send an E-Mail message
to: [EMAIL PROTECTED] (note EXACT spelling of 'ListGuru') and in
the message BODY, include a line containing: UNSUB CHIPDIR-L
(or the name of mailing list you want to be removed from). You may
also send the HELP command for other information (like subscribing).
