RCA 21CT55 B8802897 is Alive!

[RobtWB]

Hello Mr. Tomcomm,

Have you ever done any bench testing / experimenting with broadcast monitors such as Conrac or Sony CVM PVM series? Or are you only interested in the ctc2b/grey screen combination?

[Tomcomm]

After three garbled one-liner negative responses to my lengthy rationalization of my CTC2B test-bed effort, one reasonable response was finally posted. Yes, RobtWB I have a Sony PVM-1344Q composite / component pro monitor. I use it as a lab standard when comparing the picture quality of the CTC2B with a perfect comb-filtered pro monitor standard. I will use it after I converge the CTC2B and take screen shots with the new Sony DSR-HX9V camera, soon. Perhaps the three first-responders would care to elaborate on their vehement, specific objections with my present CTC2B operation at 30KV ultor, which is only 9% over max and runs only 200ma HOT current?

[miniman82]

Originally Posted by Tomcomm

Perhaps the three first-responders would care to elaborate on their vehement, specific objections with my present CTC2B operation at 30KV ultor, which is only 9% over max and runs only 200ma HOT current?

I for one already have, in your meltdown thread:

http://videokarma.org/showthread.php...hlight=tomcomm

John Folsom has much more knowledge on these old sets than I ever will, if you won't listen to him why would you listen to me (again)? Let me reiterate that your experiements are worthy, I simply fail to see what you hope to obatin by operating these parts beyond their rated limits. My 21-CT-55 makes a fine picture indeed when operated at normal current and voltages (when the tuner isn't acting up), just ask anyone who's see it. My intuition tells me that you're more likely to find improvements in picture quality by providing a better signal to the CRT, like gutting the decoder entirely and going with something more modern. I don't think anything you're doing with respect to HV production has anything to do with your results, or any improvement in picture quality. Just my opinion.