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Siemens & Halske dial tester WIZM 104

Started by countryman, June 06, 2022, 08:11:24 AM

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Not mine, but found on the web today: Siemens & Halske Wahlimpulszeitmesser. Literally a dial-pulse-time-gauge  ;) all put together in one of the infamous German compound nouns. The techs also found it awkward and just called it a WIZM.
It's a tube oscilloscope with extra long afterglow. I suppose it acts much like a modern soundcard oscilloscope, audio analyzer or this software.
I never knew it existed and thought I might present it here. The first pic is from the Aachen telephone museum which has one on display: