CTC-9 from North Hills CA

[DaveWM]

if the HV looks right, the HOT and Shunt current look correct? I like to watch the HV while oberving scene changes to see how well the regulation is taking place. I also recall reading somewhere that defects in the video amp circuit can cause excessive beam current due to bias on the CRT cahodes being incorrect resulting in overloading of the HV circuit.

[doogie812]

Replace the 3A3! Doogie

[old_tv_nut]

Originally Posted by DaveWM

if the HV looks right, the HOT and Shunt current look correct? I like to watch the HV while oberving scene changes to see how well the regulation is taking place. I also recall reading somewhere that defects in the video amp circuit can cause excessive beam current due to bias on the CRT cahodes being incorrect resulting in overloading of the HV circuit.

If the HV and regulator are OK, but the CRT draws too much beam current, you will SEE it go out of regulation (losing focus, and picture size changes)

[freakaftr8]

Yep it's dwawing excessive beam current I believe. I guess I just got used to the way an FJP22 looks. This is the first CYP CRT I have had.

[ChrisW6ATV]

I think the 21CYP22 is definitely less bright overall than an 'FJ or 'FB.

[rcaman]

your cyp will not be as bright as the fjp steve

[miniman82]

If it has weak guns, yes. The CYP that came in my '9 is very strong, it gets almost as bright as an FJP does but has better color IMO.