I guess a part number for the attenuator in question would help.
Everyone does not have 86603A manuals to check the part number.
The o-ring failures are quite common.
The attenuators with o-rings are used in a number of instruments.
Without the attenuator part number, who would know that your
attenuator is of a different design.
Glenn
On 11/21/2018 10:13 AM, Jeff Kruth via
Groups.Io wrote:
I had asked if anyone was familiar with this
type of atten. NOT the 8495 style, but a long stick. I
guess no one reads. NO O rings.
Jeff
In a message dated 11/20/2018 7:02:42 PM Eastern Standard Time,
glennmaillist@... writes:
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
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=
aol.com@groups.io>
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
>>
>>
>>
>>
>
>
>
--
-----------------------------------------------------------------------
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"
--
-----------------------------------------------------------------------
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"
