11/34 PSU (Was: RK07 repairable?) - test-drb@ccmp.vtda.org

20 Jan 2003

AFAIK, the H7xx power bricks of the 11/34 (among others)
work without any load. At least that is the way I repaired
2 of those up till now.
When the voltage output is present (again), adjust it to
the nominal value (without load).
Expect a small adjustment of the output voltage when the
brick is installed and connected in the PDP-11.
Hint: make a note near the opening from where you adjust
the potentiometer. It saves some sweat on your forehead
when you think "which direction and how much do I turn
the screwdriver?".

success,

  - Henk.

...
  -----Original Message-----
 From: Jeffrey Sharp [mailto:jss@subatomix.com]
 Sent: dinsdag 21 januari 2003 12:18
 To: cctalk(a)classiccmp.org
 Subject: 11/34 PSU (Was: RK07 repairable?)

 On Friday, January 17, 2003, Tony Duell wrote:
  One tip. If you have the 'bricks', make
up an extension   cable -- 8 pin
  mate-n-lock plug to socket, all pins wired. You
can run the 'bricks'
 outside the box then, for short periods with low load  
 How low of a load can I go with the 11/34 bricks?

 (I want to start working on my 11/34 soon! It sounds like I 
 can still do
 this with my very limited electronics knowledge.)

 -- 
 Jeffrey Sharp