If you are looking for a plenum to match up to an older frpp TVs a d use a 73mm round..
I had one made up and is for sale.
I ended up coming across an older LM CNC one that I couldn't pass up
Contact me if you are interested...so I can explain
I had one made up and is for sale.
I ended up coming across an older LM CNC one that I couldn't pass up
Contact me if you are interested...so I can explain