Interesting Projector set.

[ChuckA]

I'm the crazy who ended up buying this "beast", it was finally delivered beginning of August. It is in pretty good condition except for a lot of rust around the bottom of the cabinet where water had laid in the roller cart the equipment racks sit in.

I have been working on the 40KV supply for the past week, as it is self contained and doesn't need to be connected to any other chassis to work. If you think working around 10KV or even 25KV (color set) is scary, try 40KV. This thing will draw 6" arcs and everything you touch on the chassis "bites" you.

Pictures are of the HV chassis top and bottom, it is an RF oscillator supply using four 807's in parallel to drive the HV transformer followed by a tripler using 1B3's.

HV regulation is by a closed loop system using a 6AC7 error amp, and a 6BG6 as the control tube. The focus regulation is by a 2C53, which is like a small 6BK4.


I also bought a color projector from the same seller, you can see it at:

http://www.myvintagetv.com/amphion_600.htm


Chuck

[Sandy G]

I'd hate to see yr "light bill" after you run this bad boy for awhile...-Sandy G.