Quote:
Originally Posted by Tomcomm
Hey Dave, its looking good. Less than 18 weeks working the restoration so far is quite fast considering you went silicon rectifiers and big electrolitic cap stuffing. Of course you replaced the white RCA peaking coils and a number of small under-chassis yellow caps. Was this a less than mandatory complete re-cap or did it come this way? I really respect your logical, systematic approach to each problem you encountered and shared the process with the Members. I hope you get the Wizard of Oz for subjective evaluation of your 21CT55 picture quality and suggest also getting the " Digital Video Evaluation" DVD's test patterns for critical setup and objective PQ evaluation. Looking forward for your full-screen width, no room light, full computer monitor posted JPGs. I know what the 21CT55's are capable of so lotsa luck finishing this one off...........Tom
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Thanks, and your 21CT55 produces really great looking images. Mine had most of the original paper capacitors, which I tested with a Sencore LC-75. All the paper caps showed leakage, so I replaced them all. ALL of my white peaking coils were open, so I replaced them as well. I replaced all resistors that were off by more than +/-7% and increased the wattage rating. I am guessing that the resistors that increase in value is due to heat from not being able to handle the load. I did end up using a few of the yellow film caps, which I have used with no problems in my B/W sets.
After reading all the posts here, I wanted to try my hand at doing the restoration of my 21CT55 on my own, and ask for help here when I got stuck. So far so good. I also wanted to share the problems I ran into in case others find something similar.
I will see if I can order the Wizard of Oz and will also look for "Digital Video Evaluation" DVD's test patterns.
My camera is a cheap 7 Mpixel auto everything which probably will not be good enough to take good pictures in a dark room. How do you post high res pictures here?