trinityamps.com

Hi guys! Long time lurker here. I’ve built the tc15 and tramp and want to build an OSD now. Some pix on what I have... a dozen years ago I fancied building a OSD four banger but lost interest due to getting my job back and not having time to finish the amp. No way do I need that much power and volume so I thought a Trinity OSD kit might be fun to make. My chassis is 19” by 8” so a Trinity chassis won’t fit properly in my really nice existing head cabinet. Questions.... can my chassis be compatible with all kit components? Would my transformers work for this trinity kit? If not, would cut out for trinity transformer be the right size? This transformer I have has no 5 volt ac taps. Problem? I don’t remember where I bought the circuit boards from, anybody recognize the maker or web site? Any info appreciated!

Your power transformer is going to need 5V tap for the Trinity relay board.

My opinion is that you'd be better off selling what you have, and starting from scratch with a Trinity OSD kit.

Regarding the 5VAC relay supply: you could potentially build your own using the heater supply:
https://el34world.com/projects/relay_switch.htm

there's a lot of $ you already have in the cab, chassis, transformers, caps, sockets, etc. I'd try to use what you already have, but that depends on your willingness to source your own parts, piece things together and modify the circuit for 2x6L6 use. If you are wanting 2x6V6 operation like the trinity amp, your PT is overkill.