HERESY ... My CT-100 Color TV TUNER

[dtvmcdonald]

I am currently watching glorious I-Q color TV being demodulated by my RCA CT-100
color tuner and displayed on a 13 inch pretty good quality
Sony monitor. Its a bit too bright of course and has a bit of ringing,
but its very very watchable. Its FAR better than later "tubized NTSC demodulators".
Really. The dead 15GP22 is of course disconnected.

What I did was manufacture a impedance-converter/reducer with three channels,
each using one FET and one BJT. This will take a bit of tweeking
because there is just too much red signal compared to green and blue.
Also, the amplitude of the signals is being reduced using resistor pairs with a
1 megohm resistor and a 30 to 47K resistor, so I suspect they will need
capacitors in parallel to get the response correct. Finally the Sony has
its own DC restoration so that feature of the RCA does nothing ...
when there is a fade to black, it really goes black.