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From: Cursitor Doom <cd@notformail.com>
Newsgroups: sci.electronics.design
Subject: Re: "Double Pulse Generator"
Date: Sun, 22 Sep 2024 09:10:38 +0100
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On Sun, 22 Sep 2024 09:04:29 +0100, liz@poppyrecords.invalid.invalid
(Liz Tuddenham) wrote:

>Cursitor Doom <cd@notformail.com> wrote:
>
>> Gentlemen,
>> 
>> Looking back through my stash of vintage test gear, I've uncovered
>> something which describes itself as a double pulse generator. I'm
>> going to hook it up to a scope to see what it actually does (if
>> anything, after all these years). Now I know what a pulse is and what
>> double means and what a generator does but I've not encountered such a
>> device before. I'd be interested to learn from anyone who has,
>> precisely what sort of application this device was intended for? I
>> would have posted a pic, but hopefully someone will know without me
>> having to go to the trouble.
>
>I have one made by "Advance", most of the transistors are early
>germanium and (I vaguely remember) some avalanche devices to give sharp
>pulse edges.   They were exotic specialised equipment used mainly in the
>nuclear and telecommunications industries. 
>
>As far as I know, their main use was producing pairs of pulses close
>together to check that devices like Geiger counters weren't missing
>pulses due to latency.  They could also generate test waveforms for
>video links.

Wow. Thanks, Liz.