20 Nov
2008
20 Nov
'08
7:42 a.m.
From: "Pete Turnbull" Wednesday, November 19, 2008 4:54 PM
I've decided to be extra careful, and re-form the
main electrolytics.
So far the ones I've done look fine, but it'll be a while before I get
them all done, as I have to do one at a time (more or less), and isolate
each from the circuit. The terminals are easy to get at but the wiring
is tightly packed and I can't see the values so I'm not entirely sure
which ones are which. It would help to have a component layout drawing,
which I imagine would be part of the engineering drawings set. However,
all I can find online are the schematics and layouts for the two little
control boards. Does anyone have the rest of the drawings?
From: alt.sys.pdp8 October 15, 2007
On Oct 7, 4:32 pm, "Gordon S. Hlavenka"
<nos... at crashelex.com> wrote:
The information you seek is on scan pages 10 and 14 of 35, and the PDF
is still available at crashlex.com. (I actually found it in my local
copy, then went to see if it was still out there.)
Vince
Well then, try
this:http://www.crashelex.com/pdp8e-IPB.PDF
(BTW I encourage anybody else who's archiving docs to snag this one
since I can't promise how long it'll stay on my server :-)
--
Gordon S. Hlavenka http://www.crashelectronics.com
It's bad luck to be superstitious
THANK YOU, THANK YOU,
Gordon!!
Saved me hours of tracing wires. Found 3 blown pass transistors
(2N3055) in the +5V supply. Thankfully one can still purchase these
from Digikey.
Hope to get the power supply fixed this weekend so I can start
testing boards.
Roger Wink