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From: Jeroni Paul on 22 Sep 2009 18:36
I built a clock some years ago with the oldest components I could
find. Not exactly test equipment but it does meter the time :)
It is documented here:
http://es.geocities.com/podernixie/nixie/index-en.htm

It uses some digital 74xx ICs from around 1972, a selenium rectifier
and of course nixies for display.
From: Ansgar Strickerschmidt on 23 Sep 2009 06:58
Am 22.09.2009, 16:59 Uhr, schrieb Joerg <invalid(a)invalid.invalid>:

> Resistors are staunch parts. As a teenager I worked in a company that
> made specialty electric gear. One of my jobs was to braze huge brake
> resistor arrays for locomotives, the size of a closet. They could get
> red-hot and still perform their job.

Well, ultimate accuracy is surely not an issue when talking of dissipating
energy on a locomotive... allow for some 10-20% (or so) change in
resistance value with temperature - who cares...

Ansgar

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