Re: An 1897 Curve Tracer??

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Sujet : Re: An 1897 Curve Tracer??
De : Jeff (at) *nospam* invalid.invalid (Jeff Layman)
Groupes : sci.electronics.design
Date : 13. Apr 2025, 20:10:37
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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

Date Sujet#  Auteur
13 Apr 25 * An 1897 Curve Tracer??7Cursitor Doom
13 Apr 25 +* Re: An 1897 Curve Tracer??2Cursitor Doom
13 Apr 25 i`- Re: An 1897 Curve Tracer??1Bill Sloman
13 Apr 25 +* Re: An 1897 Curve Tracer??2john larkin
13 Apr 25 i`- Re: An 1897 Curve Tracer??1Jeff Layman
14 Apr 25 `* Re: An 1897 Curve Tracer??2piglet
14 Apr 25  `- Re: An 1897 Curve Tracer??1Phil Hobbs

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