CTC-4 Director 21

[old_tv_nut]

They're cheap - get one or a few
http://www.newark.com/raltron/a-3-57...49u/dp/96F2798

[SwizzyMan]

Cant go wrong at 58 cents. Ill pick one up soon and go from there. I now have a whole lot of time to work on the set now. I hope to get it wrapped up by august.

[SwizzyMan]

New crystal is in and I can see a bit of improvement. Still cant get color to lock. But I can faintly see color through the rolling bars. Black and white picture is perfect I just cant get this pesky color to lock. I have tried putting caps across the crystal but I cant seem to get the frequency below 3.57900 (with a cap across the crystal). Reading through Phil's article on his 4 reveals that a 100pf cap can be put across L142 I believe. This TV wants to produce color, it is so close! Should I add a cap across L142?

[old_tv_nut]

Originally Posted by SwizzyMan

... I have tried putting caps across the crystal but I cant seem to get the frequency below 3.57900 (with a cap across the crystal)...

Did you mistype the frequency? 3.57900 is too low - should be 3.579545.

Edit: oops - I see you meant 3.57966 - still high.

[SwizzyMan]

Originally Posted by old_tv_nut

Did you mistype the frequency? 3.57900 is too low - should be 3.579545.

Edit: oops - I see you meant 3.57966 - still high.

Yes right, my bad. I can get it down from 3.57966 to 3.57900 with a cap across the crystal.