[amsat-bb] Re: G5400 replacement pots - waS RE: (no subject)

[i8cvs]

Hi Alan, Scott, and All

Here are many wire wound linear potentiometers that can be adapted.

http://www.potentiometers.com/select_precision.cfm?session_num=2008091501464
233

The models belove seems to be the best candidates because they are totally
encapsulated wirewound and 360° continuous rotation.

http://www.potentiometers.com/Series5100.cfm?session_num=2008091501464

http://www.potentiometers.com/Series5400.cfm?session_num=2008091501464

73" de

i8CVS Domenico

----- Original Message -----
From: "Alan" <ve4yz at mts.net>
To: "'Sammy Jenkis'" <sammyjenkis8965 at msn.com>; <amsat-bb at amsat.org>
Sent: Monday, September 15, 2008 6:17 PM
Subject: [amsat-bb] G5400 replacement pots - waS RE: (no subject)


>
> Good and timely question Scott.   Every 10 years or so I rebuild these AZ
> and EL rotators and replace the bears and low temperature grease I think
> that the pot is always the weak link and never gets attention.  I have 3
> sets of these AZ/EL rotators to maintain ( mine, club's and friend's ) so
> about every 3 years I have at least one set of them on the bench.
>
> I look forward to other's responses to replacing these pots that are
> unenclosed, exposed to condensation, bugs etc, with  a looped centre wire
> flexing/coiling/uncoiling with each satellite pass.
>
>
>
> -----Original Message-----
> From: amsat-bb-bounces at amsat.org [mailto:amsat-bb-bounces at amsat.org] On
> Behalf Of Sammy Jenkis
> Sent: September 14, 2008 9:52 PM
> To: amsat-bb at amsat.org
> Subject: [amsat-bb] (no subject)
>
> Our club has a 5400 Elevation Rotor with a bad potentiometer (wires on the
> winding broken).
>
> The part number is Vertex Q9000408, but I contacted them and they say this
> part is no longer available.
>
> Anyone have a source for an equivalent part or another alternative?
>
> Thanks,
> Scott
> W0SJE
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