Another RCA CT-100 discovery B8001599

[etype2]

At the risk of not straying too far off topic, actually the Admiral C1617A was the first with more than 1000 copies made and the Westinghouse H840CK15 was second with approximately 3500 copies made. RCA CT-100 was third with about 4400 copies made.

Admiral was in stores in January, 1954, Westinghouse March, 1954 and RCA April, 1954. Availability of all sets were very limited. As an example, the CT-100 wasn’t available to purchase in NYC until mid May, 1954.

I don’t know what demod scheme Admiral used with their C1617A.

EDIT: Clarification, The RCA could be ordered in April, 1954, but not available until about mid May, 1954.

[Electronic M]

Originally Posted by etype2

At the risk of not straying too far off topic, actually the Admiral C1617A was the first with more than 1000 copies made and the Westinghouse H840CK15 was second with approximately 3500 copies made. RCA CT-100 was third with about 4400 copies made.

Admiral was in stores in January, 1954, Westinghouse March, 1954 and RCA April, 1954. Availability of all sets were very limited. As an example, the CT-100 wasn’t available to purchase in NYC until mid May, 1954.

I don’t know what demod scheme Admiral used with their C1617A.

You nerd sniped me on that last line...After a visit to earlytelevision.org I now know it's an I/Q demodulation set.

The GE 15CL100 that IIRC also beat RCA to market is an R-Y/B-Y set with the added weirdness of not having a chroma osc but instead a crystal ringing circuit like a portacolor....The portacolors demodulator comes from a different brand of early color set the 1957-62 Motorola 21CT2.

I now want to read more about what demod circuits the various early color sets had.

A few weeks ago I got out bid on a 21" Raytheon that I happened to have the Sam's for and it's demod was a fairly novel design.

[old_coot88]

At the risk of drifting the thread a bit more, we had a GE roundie come in the shop with no color sync. After subbing tubes to no avail, noticed a little Ne-2 neon bulb lurking down in the burst area, and it was lit normally. Figured, change it anyway. Perfect color sync. Never pulled a schematic, but assumed it must be serving as burst gate into the ringy circuit.