This article is from the Apple II Csa2 FAQ, by Jeff Hurlburt with numerous contributions by others.
Okay. This is from information presented in GS and IIe manuals:
PS Connector Output Max. Output Current
Pin# (GS/IIe) Volts (GS/IIe)
7/6 - 5 V 0.25 Amps /0.25 Amps
6/5 -12 V 0.25 Amps /0.25 Amps
5/4 +12 V 1.00 Amps /1.50 Amps
4/3 + 5 V 4.00 Amps /2.50 Amps
2/2 GND
1/1 GND
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