Speaking of problems with DEC power supplies...
Some time ago I posted about problems with five 1800uF capacitors in multiple
H7821 power supplies leaking electrolyte, particularly when the machines are
stored in the wrong orientation.
One of my MicroVAX 3100 machines has a slightly different
On 1/7/2022 2:35 PM, Nigel Johnson Ham via cctalk wrote:
I told the chief engineer that the problem was the same thing that
caused planes to crash, and he suggested maybe the cargo door had fallen
off! (that puts it in 1972 since it was AA Flight 96 that had just
happened!)
My uncle
I have a cabinet full of 'parts' regulators if anyone is local to
landenberg, pa (btwn phila/baltimore) and would like one to use for parts,
selling for a reasonable cost (make offer) or trade. Contact me privately
through vintagecomputer.net. I also have a limited supply of NOS Sprague
caps for
> Note that both have a minimum order :-<. As for pins:
If folks don't want to deal with minimums, we can make up cables with the
correct connector, we stock the housings, crimps, and have the correct TE crimp
tool for them.
That said, connectorpeople.com are good to deal with, we use them for
> From: Rob Jarratt
> Does anyone know what the correct one is?
This:
http://gunkies.org/wiki/DEC_standard_modular_regulators
has all the details.
(If anyone knows of any PDP-11 hardware or UNIX information which is not on
the CHWiki - I'm not interested in DEC PDP-11 software, but
See the bottom of:
https://gunkies.org/wiki/DEC_standard_modular_regulators
I believe that you'll want one or more of these:
https://www.connectorpeople.com/Connector/TYCO-AMP-TE_CONNECTIVITY/1/1-48046
0-0
https://www.connectorpeople.com/Connector/TYCO-AMP-TE_CONNECTIVITY/1/1-48045
9-0
Note
To make testing of the H744 a bit easier I would like to try to make up some
connectors for the mate-n-lok connector to make it easier to connect power
and load. I know the H744 uses a mate-n-lok connector, but there seem to be
a lot of different types and I don't seem to be able to find a type
