Sujet : Re: An 1897 Curve Tracer??
De : Jeff (at) *nospam* invalid.invalid (Jeff Layman)
Groupes : sci.electronics.designDate : 13. Apr 2025, 20:10:37
Autres entêtes
Organisation : A noiseless patient Spider
Message-ID : <vth27d$3gg48$1@dont-email.me>
References : 1 2
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On 13/04/2025 17:37, john larkin wrote:
On Sun, 13 Apr 2025 12:20:59 +0100, Cursitor Doom <cd@notformail.com>
wrote:
Seems there was! I'm just wondering, since thermionic valves and
semiconductors were yet to be invented, just what the hell they were
generating curves of? Anyone care to hazard a guess?
The Hospitalier Ondograph was a graphing sampling osciloscope ca 1902.
<
https://en.wikisource.org/wiki/1911_Encyclop%C3%A6dia_Britannica/Oscillograph>
-- Jeff