Here is a video on repairing one of these attenuators:
The O-Rings are 2mm od x 1 mm id x 0.5mm thick.
Theses are used in watch making.
Hope this helps
Glenn
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On 11/20/2018 6:31 PM, g lowrey wrote:
Hey Jeff. Have you measured one to check the size? I have several
sources that might be able to supply them -
73,
Bo L.
On 11/20/18, Jeff Kruth via Groups.Io <kmec@...> wrote:
Hi All!
Dont ask why, but I am resurrecting several HP 8660D generators with the
HP86603A plugin. The attenuators are "sticky", get stuck in a certain
position. If you have experience with this exact type of stick attenuator
(long silver block) with the 3 - 40 dB, 20 dB, & 10 dB sections and can
advise how to make a reliable repair, I would love to hear about it. Several
that I cleaned the solenoid shafts on seemed to be working only to stick
again. I do not know how to search the archives as well, can someone
advise?Thanks!73Jeff Kruth
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Glenn Little ARRL Technical Specialist QCWA LM 28417
Amateur Callsign: WB4UIV wb4uiv@... AMSAT LM 2178
QTH: Goose Creek, SC USA (EM92xx) USSVI LM NRA LM SBE ARRL TAPR
"It is not the class of license that the Amateur holds but the class
of the Amateur that holds the license"
