User`s guide

If the PS starts to chirp when even small loads are applied (e.g. 10 Ohms
across the +5V output), then it has one or more bad components or is badly off-
adjustment. If it has an adjustment, try cleaning the control and retry the load
tests after a small change in the adjustment setting.
If the chirping persists, replacing the unit with a new A2 power supply, a
module from Jameco, etc. or a Buggie external PS may be the easiest cure.
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From: Mike Smith
014- My GS power supply seems to be nearly dead! The only
odd looking symptom so far is that one of the big
electrolytic capacitors near the power input side is at
260 volt & the other is at 30 volt?!
There is a 100k bias resistor in the front end of the inverter. If this
resistor is broken, loose, or otherwise 'open' you will get the symptoms
described. Replace the resistor and both capacitors should be at the same
voltage ( approx 140 volt) and within the 200 volt working rating of the
capacitors. This should fix the power supply.
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From: Stephen Buggie
015- What is a "Buggie Power Supply"?
It is an external power supply, usually a surplus PC unit, which connects
to the Apple II via a heavy-duty cable.
My IBM-style power supplies generate the same voltages (+5v, +12v, -12v, -
5v) as those required by the Apple II. But IBM-style power supplies deliver
150-200 watts of power, more than twice the weak output of the standard 60 watt
Apple II power supply. Thus, problems associated with weak power (screen
freezeups, crashes) in the Apple can be reduced or eliminated by using an IBM
power supply on the Apple.
With a strong IBM power supply, you can fill all your interface card slots
or add extra disk drives without overloading the power source.
Recently, I have offered these power supplies for Apple II:
IBM 150 watt power supply, soldered to 5 ft cable; choice of either IIgs or IIe
plug. $27.00 plus $5.00 UPS shipping ($8.00 shipping to Canada)
Cable-only: connects to IBM power supply at power-points P8, P9, and Molex-4.
Allows you to connect the IBM power supply you already own to an Apple II
(Specify whether IIgs or IIe plug is needed). $14.00 plus $3.00 priority mail;
To Canada: US$4.00.