User`s guide

the "count" as a function of the variable resistance. Then compare the plot
against the resistance curves for the thermistor (probably not linear), and work
out some conversion formula to use in your program to correlate "count" to
temperature.
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From: David Empson
003- Can I use the same prototyping Slot Board for all of
the different Apple II's with Slots?
Prototyping boards certainly would be the same for the II, II+, IIe, and IIgs.
The slots on all slotted Apple IIs are physically identical
There are minor differences between the slot signals on the various machines and
on some slots in the same machine, mostly affecting rarely used special pins.
(See Question 004 for more details on signal differences.)
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004- What is the pinout for the Apple II series Slots;
and, what differences are there in Slot signals from
machine to machine?
Here is a quick summary of the Apple II series Slot signals:
Pin 1: I/O Select ($Cn00-$CnFF, where n is the slot number).
Pins 2-17: Address bus A0-A15.
Pin 18: Read/Write.
Pin 19: unused on the II and II+. On the IIe and IIgs, this has composite
horizontal and vertical sync on slot 7, and is unused on other slots, except for
slot 1 on the IIe only, which has a diagnostic function to disable the
oscillator on the motherboard.
Pin 20: I/O Strobe ($C800-$CFFF).
Pin 21: this is the RDY input to the micro on all machines, but it behaves a
little differently in the IIgs, or in a machine with a 65802 installed.
Pin 22: this is the DMA pin on all machines. Again, there are special issues
for doing DMA on the IIgs which can cause compatibility problems.
Pin 23: this is used for the interrupt daisy chain (out) on all Slots except 7.
In the IIe only, this pin can be connected to the GR signal (graphics mode
enabled) via a motherboard modification.
Pin 24: DMA daisy chain out.
Pin 25: +5V.
Pin 26: Ground.