Funniest thing doing this is how many people chat with you about the uniqueness of garage sales via bicycle.
One guy, incredulous, said "wow! you know you have a bicycling habit when you are doing garage sale by bike!" (then he proceeded to tell me a story about doing the same with his family on vacation, with an electric cargo bike, after they had all been drinking all night (apparently they were still kinda drunk), and coming back to the hotel with the front cargo section of that bike filled up with garage sale stuff, lol).
Collins IND-350.
"...The IND-350 is an affordable GPS/VOR/LOCIndicator from the Collins Microline series. The IND-350 uses a rectilinear meter movement, instead of pendulum, which makes it easier toread. The needle remains vertical throughout its range of travel, which helps the pilot to better determine the degree of correction neededto stay on course.
This indicator does not contain a VOR/LOC Converter, which permits its use with a GPS. The IND-350, together with an Annunciator ControlUnit (ACU), can be used to meet the FAA requirements for an IFR GPS installation...."
Someone posted the pinouts/manual online!
(Curious if I can get it to move....)
https://endzone2.weebly.com/uploads/1/2/1/5/12152002/vir-351_installation_manual.pdf
Hmm, someone connected one of these up to a flight simulator, so the specs must be out there....

Ah, looks like people definitely are hacking these things into their flight simulators, lol. Will think about what to do with this, goes into the "nifty random electronics detritus in the shack" pile, ha ha.
https://hackaday.io/project/163622-interfacing-a-course-deviation-indicator

My flight club was gifted a Bendix/King KI203 VOR/LOC Indicator. Since those instruments rarely break and it hasn't got the necessary form 1 anyways, we decided to use it in our small flight simulator. But I don't just want to gut it and control the indicators with an Arduino, as I won't learn much from it and couldn't really use the results for another project, like a DIY testing station for navigation indicators. So this project is about figuring out all the required control signals, figuring out how to emulate them in an independent hardware device and finally getting the required data from FSX and displaying it on the instrument.
Oooh... nooo... TINY, probably, assuming these are somewhat standard. This other NAV VOR indicator uses 0.3V.
LOL, okay, so opened it up, the to/from indicators have been removed (probably defective?), and basically you have the left right indicator controllable (it's a small electromagnetic control to move the pin left or right). The rest of the mechanism is a motor (?) it appears to either move the mechanism, or more likely just to read what the pilot has set on the OBS knob?
So your controls would be: move needle indicator left/right, and read the dial indicator. 🤔 LOL, anyway.