Apple Power Supply Questions

[capknight <cepheusfilms@gmail.com>]

Hello,

I picked up a number of active and dead power supplies recently. A few
are the AE Vulcan GS supplies, AE IIe Supplies and original OEM Apple
supplies.

Some were dead but I was able to resurrect them by replacing the
electrolytic capacitors.

The readings are a bit odd on the Vulcan GS supplies. I've listed them
below with modified and unmodified numbers (meaning I replaced the
caps in one and left the other original).

The negative 12 volt leg seems really low on the Vulcan GS supplies as
well as the re-capped AE IIe supply.

I did not test the Vulcan GS supplies with the 105mb hard drives
installed. I was able to find re-certified drives that work just fine
with the Vulcan GS cards.

Testing was done straight from the boards and not through the cables.

One thing I did note on the Vulcan GS supplies is that the gauge of
the wires from the 120v receptacle to the switch and board are very
thin in comparison with the other supplies.

Any thoughts?

Thanks!

C

Modified Vulcan GS (caps replaced):
================

-4.32
-10.07
+12.19
+5.47

Fan: +12.17

Molex for HD:  (red) +5.46
		   (yellow) +12.17



Unmodified Vulcan GS:
==================

-4.27
-10.05
+12.13
+5.42

Fan: +12.11

Molex for HD:  (red) +5.47
		   (yellow) +12.08



Modified Applied Engineering IIe Supply (caps replaced):
============================================

-4.99
-11.6
+12.03
+5.28

Unmodified Apple IIgs Supply:
=======================

-4.98
-12.13
+11.24
+5.05