DuMont Westminster Series II 1951

[cbenham]

Originally Posted by Dave A

Clif, I would like to see the schematic of whatever was supposed to do the color trick. Dave A

Hi Dave,
The Du Mont Royal Sovereign also has this 'color converter' output jack on the rear of the chassis.

In the RA-119 schematic this is a cathode follower output from the 1st video amp after the detector, so it's a composite video signal output for color.

This is just a guess, but if this were for a CBS color conversion, which seems logical since this is a set from 1950-51, the RA-116 output would probably be intended to feed a CBS 'Slave Receiver' rather than a converter chassis and a BIG wheel for the RA-116.

Given Du Mont's disdain for the CBS system I can't imagine them building a working CBS wheel adaptor 5 feet in diameter and modifying the set's sweeps
to accomplish this. See the Du Mont CBS color wheel 'mockup' [attached].

However, all things are possible, and it is feasable to build a wheel for a 19 inch CRT and drive the set with one of Darryl's SCRF-525M-SC [Col-R-Tel] converters. Not CBS color but high quality field sequential color and a show stopper.

[Disclaimer to all: I'm just a very satisfied customer and not otherwise connected to Darryl's converter factory.]

Cliff

[cbenham]

Originally Posted by cbenham

See the Du Mont CBS color wheel 'mockup' [attached]. Cliff

The attachment didn't make it, probably because it has been posted previously
in another thread. I'll try again. This image is courtesy of John Folsom.
Cliff