Computer speedometers

[Chuck Guzis]

I was reminiscing to someone about an old GE mainframe with an analog meter
that registered Kops/sec.  I'm sure it was little more than an RC
integrator hooked to the RNI signal reading out on a voltmeter, but it
seemed pretty spiffy at the time.

Has anyone done a similar thing with their vintage systems?  On the 8080,
the M1 signal could be used; I'm not sure offhand about other processors.

I know--it's more simple amusement for a simple mind...but then, blinking
lights always fascinated me.

Cheers,
Chuck