No clue but It’s gotta be worth something lol

[ronnievisci]

I’m not 100% what I have here but I know it’s worth something so I’ll take anything reasonable and appreciate not ripping me off LMAO. There are two separate boards here

 

[swich401]

https://www.ebay.com/itm/182065648476
That's the first board. Don't know what it does apart from being an "Active tuning circuit". May not be worth too much if the capacitors on the board are the originals from when the board was released 🤷‍♂️

 

[JMFahey]

Mystery unknown use boards are worth exactly what you paid for them, typically zero.
Sorry.

 

[Andersonix]

They look like good boards to practice your de-soldering.

 

[JMFahey]

They look like good boards to practice your de-soldering.

Or burn and slap parts recycling.

When I was a poor kid bought IBM PCBs ($1 a kilo) , grabbed them with pliers, melt solder side with a propane torch and slapped component side against a table covered in old newspaper.

Harvested hundreds of transistors - caps - diodes that way, thousands of resistors, in a fun filled evening.