[Test-Equipment] Heathkit PS-4 or IP-32 Manual

[eric lemmon]

I am trying to repair a Heathkit PS-4 high-voltage power supply, which is
electrically identical to the IP-32 unit.  I have the schematic diagram, but
I have been unable to find an assembly manual.  I did find a partial manual
online, comprising only 8 pages, but the complete manual has at least 26
pages.  My intention is to verify that the unit was properly wired by the
original owner, and having the step-by-step instructions will be very
helpful.

If any member of this list has a clean and complete original hard copy of
the PS-4 or IP-32 manual, I would like to borrow it for full-page scanning
into PDF by my local graphics house.  Your original will be returned to you,
along with a CD containing the PDF file.

When I first tested the unit, both C4 and C6- 20 uF 450 VDC electrolytics-
were leaking, and C6 ruptured.  I replaced both with new capacitors (at $17
a pop!) but the unit still does not work properly.  Major clue: The new C6
gets very hot, very quickly.  All tubes check good on my TV-7A/U tester, and
the four M150 silicon diodes check good.  I am thinking that a very high
amplitude ripple will heat up a filter capacitor, so my next step is to test
or replace the two 70 uF 350 VDC capacitors C2 and C3.  Another clue:  When
the pots are preset per the note on the schematic diagram, I measure +135
VDC on the cathodes of the 6L6 tubes, rather than the +40 VDC specified.
Yes, I am using a 20,000 ohms/volt analog meter!

If any reader has encountered similar problems with a Heathkit PS-4 or IP-32
power supply, please respond.  Thanks!

73, Eric Lemmon WB6FLY