Admin, I hope I put this thread in the correct category.
I built this radio for a classic car using an old car radio, Arduino Uno, LCD1602, buck converters, FM tuner module, USB-powered bluetooth receiver, TDA7439 audio processor, etc. I rigged the old tuner knob that would mechanically change the station to a rotary encoder.
I am working on improving the unit, a revision B, if you will. I would like to find a rotary encoder that I could install in place of the the old tuner knob, but am unsure where to look or what that style would be called.
A project goal is, maybe after a few more revisions/versions, to be able to build the entire thing without scavenged parts i.e. the tuner knob scavenged from the old radio.
Here is a photo of the current version of the project and the knob that I am trying to replace with an encoder.
Here is a perfect example of what I am looking for, but this website seems to be more for connecting companies that buy in bulk from manufacturers. Too bad I don't need 10,000 units. The title calls it 11mm, but the rendering and the drawing both reflect the actual dimensions I want. They aren't 100% identical to the old knob, but would work no problem.
Other changes I plan on implementing in "revision B" of my radio is a PCB and redesigning the face of it to look both more professional and more period correct. While looking for a more robust Bluetooth module I found the ESP32 and discovered that in addition to providing the Bluetooth functionality I need, it can replace the Uno!
Hi, everybody. I appreciate the replies.
I am already using a coupler between the old radio knob and a regular encoder and it is fine.
But what I would like to do, if possible, would be able to build the whole thing without reusing parts from an old radio.
The tricky links don't make it easy to sort out, but he wants to replace the improvised (on the left) with an extended shaft encoder (on the right). But he can't buy on OEM quantity. Boiled down - "anyone got a source?"
I followed the link and also to the manufacturer and they DO NOT make such a device. I have no idea where the web site got the picture. I also looked at the images that Google presented and there was nothing like the picture you linked to.
Looks like you will have to custom make such a device or have it made. Unfortunately, it is NOT just a plain long bushing as you described, but a coaxial shaft and bushing for your encoder/push button switch.
