whats a real good 19AP4 worth? Its a Sylvania replacement.

I sold one for $100 back in the 80's - would pay twice that now since my rebuildable spare was destroyed in a "free move-in" truck mishap.

I would imagine it could possibly bring $150-$200 since it fits both DuMont sets and and Zenith Portholes and it's very hard to find in good condition.

My Sherbrooke came with a booster dangling off the CRT...

Thank You for the help.