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Originally Posted by yagosaga
Hi Steve (D.):
on your web page I saw you own a CT-100 with a 15GP22 and a CTC-5 with a 21AXP22A. We know that the 15GP22 has the early type phosphors according to NTSC norm. What is with the 21AXP22A? If you compare the colors, is there a difference, and when in which color?
Eckhard
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Hello Eckhard,
My CTC-5 has a replacement 21CYP22A tube. I can say that the color image on the CT-100 is more vivid and true to the primary color spectrum.
Most appearent is the natural deep reds. There is a higher brightness level on the 21CY and overall the color reproduction, is a bit more muted and similar between the 21CY and 21AXP22A's I have owned. My CTC-5 is the Deluxe chassis with X & Z color demodulation and additional color amp. Let me say that both a well set up CT-100 and CTC-5 produce far more natural, IMO, color pictures then later model color sets with sulphide tubes and "improved" phosphors.
-Steve D.