Altair switch handle measurements

From: Dave Dunfield <>
Date: Fri Dec 17 06:07:18 2004

At 14:00 16/12/2004 -0500, you wrote:
>Hello, all:
> If anyone has access to an Altair 8800 (the original model) and can
>measure the toggle switch handles, I would greatly appreciate it. I need the
>length of the handle from the top of the threaded collar to the end of the
> Thanks a lot.

Hi Rich,

Since no-one else has repsonded, I uncrated my 8800 and measured the switches.

This measurement is difficult, because the top of the collar does not protude
through the front panel, and in fact does not come all the way through to the
face of the panel.

I measured the switches by holding a toothpick against the top of the collar,
and straight out beside the switch - marking the top of the switch, and then
measuring the toothpick. Measurements are from the collar to the furthest out
edge of the dome at the end of the switch handle.

Both switch types (two position and three position) are exactly the same length.
I measured the two position switch by positioning it 1/2 way (straight out) .

And the measurements are (drum roll please):

  11mm (7/16 inches)

dave04a (at)    Dave Dunfield
dunfield (dot)  Firmware development services & tools:
com             Vintage computing equipment collector.
Received on Fri Dec 17 2004 - 06:07:18 GMT

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