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Article #5403Re: Can anyone identify these tubes?
From: Tom Bruhns
Date: Tue, 31 Jul 1990 18:06
Date: Tue, 31 Jul 1990 18:06
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Considering that Jarrell-Ash made it, and the "hollow cathode" description, the second tube is probably one that emits spectral lines of those elements, for calibration of an optical spectrometer. J-A makes (made) spectrometers and associated equipment. And that would say that the first one is indeed probably a PMT or a photodiode (not solid state ;-). (My PMT book is at home; can't look it up.)
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Path: arc1-ca.pugleaf.net!utzoo!utgpu!news-server.csri.toronto.edu!rutgers!usc!sdd.hp.com!hp-pcd!hplsla!tomb From: tomb@hplsla.HP.COM (Tom Bruhns) Newsgroups: sci.electronics Subject: Re: Can anyone identify these tubes? Message-ID: <5170084@hplsla.HP.COM> Date: 31 Jul 90 18:06:32 GMT References: <1624@oucsace.cs.OHIOU.EDU> Organization: HP Lake Stevens, WA Lines: 6