Antique radio and guitar amplifier repair is a rewarding hobby. DigiKey often receives requests for replacement components including hard-to-locate items such as volume and tone controls with integral ON/Off switches.
You may find a suitable replacement from the 450 series provided by CTS Electrocomponents. The 450T328S104A1C1 shown in Figure 1 is an example. It features a 100 kΩ (linear) potentiometer with rotary SPST switch.
Please let us know if you require assistance location parts for your radio or guitar amplifier.
Keep you iron hot and your fuses shorted.
APDahlen
Figure 1: Image of a CTS potentiometer with an integral on off switch.
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About this author
Aaron Dahlen, LCDR USCG (Ret.), serves as an application engineer at DigiKey. He has a unique electronics and automation foundation built over a 27-year military career as a technician and engineer which was further enhanced by 12 years of teaching (interwoven). With an MSEE degree from Minnesota State University, Mankato, Dahlen has taught in an ABET-accredited EE program, served as the program coordinator for an EET program, and taught component-level repair to military electronics technicians. Dahlen has returned to his Northern Minnesota home and thoroughly enjoys researching and writing articles such as this.