[amsat-bb] G-5500 AZ Potentiometer

[Gregory Beat]

As Mike Wilhelm noted, TOCOS is a Japanese manufacturer, that has a North American office (Northwest Chicago suburbs) not far from my QTH.

TOCOS RA25 Wire Wound Potentiometer (designed for Panel Mount)
“25” references 25mm (1 inch) diameter, made by CTS (Elkhart, IN) over past 100 years.
https://tocos.com/products/series/wire-wound-panel-controls/ra25

DATASHEET for TOCOS RA25
https://tocos.com/uploads/media/products/0001/01/1256394e7e05d3b089a35ad5889abeed77579708.pdf

SELECT Your Country, State/Province for TOCOS Distributors
https://tocos.com/sales-locations

TOCOS America
1177 East Tower Road
Schaumburg, IL 60173
Telephone: 847-884-6664
FAX: 847-884-6665
Sales e-Mail: sales at tocos.com
Web Site: http://www.tocos.com
—
greg, w9gb
==
From: "Joseph B. Fitzgerald" <jfitzgerald at alum.wpi.edu>
To: "amsat-bb at amsat.org" <amsat-bb at amsat.org>, Rafael Pena
<pinoleronica at hotmail.com>
Subject: Re: [amsat-bb] G-5500 AZ Potentiometer

I didn't find a supplier, but I did find a datasheet. You can probably find a replacement from a different manufacturer.  Curiously it is only rated to -10C.
https://www.tocos-j.co.jp/tocos-j-wp/wp-content/uploads/2019/06/RA25_Series.pdf

jbf