Bun's Lab – Telegram
Bun's Lab
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Electronics projects, vintæg computing, programming and repairs. A minimalist blog of sorts.
@BunsGarden @BunsNook
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I got a lot of calibration and test equipment from the Tektronix facility in Heerenveen, including things only used internally by Tektronix. Like this power supply test plugin
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With the original ~50 year old filter caps

Edit: the measured ripple is always an upper limit
Option 4 is the 'Maximum Brightness CRT' and Option 78 'P11 Phosphor'
No wonder this thing messes with photo sensors
The plugins have illuminated buttons. Except they stay dark in my frame. Tek didn't supply the +5V for the button illumnation in my particular model.

I quickly whipped up a regulator, stole some juice from the 9V supply rail and put it snugly in place.
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That's in fact an option Tektronix provided an installation manual for.
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One fancy plugin I have is this 7S12 TDR / Sampler. A plugin that itself has plugins, naughty.
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Chonkey two bay unit that provides both a vertical and a horizontal plugin.
Time Domain Reflectometry is used to detect and locate faults in cabling by sending a sharp pulse down the cable and measuring the reflections.

In the TDR configuration the right bay takes a pulse generator, such as the S-52, that achieves rise times of < 25 ps, while the left takes a sampling head. Sadly, I don't seem to have a pulse generator plugin.