Philco model 22D5102 color

[DavGoodlin]

Yes, I really wondered if TV123 chassis easy as ABC? More importantly: How many of these exist and how many are operational/restored?

According to the ETF and myvintagetv.com sites, 500 were made with just 6 known to exist. I can't imagine the Philco dealers having just one color model among many monochrome sets, then no color models for 5 years - The K5411 chassis 12L80 (totally RCA CTC11 in a very non-RCA cabinet). More questions than answers about how these were distributed, sold, given away as prizes, etc.

I am personally aware of two of these grand prizes owned by VK'ers and I just had one of the chassis on a test CRT/yoke in my TV bunker. It sat for a few years in my queue but curiosity and a sudden opportunity to return it just yesterday motivated me to action.

Fortunately the yoke/convergence yoke and CRT are from a CTC5. Even still, there are some special connections needed if you have just the chassis. I received the chassis fully-recapped, owner reported no HV and supplied full documentation from the ETF site including a factory training book. This owner was aware of the fly failure and had undertaken some modifications which proved spot-on after this adventure.

First, Two 250-ohm 5 watt power resistors provide a dummy load for the purity coil on the CRT (like CTC5 has those magnets).
Second, Standard 21" round CRT yoke needs old octal tube pins on leads to plug the yoke leads into that oddball connector Philco used.
Third, no need to bypass the convergence board plug to get full vertical sweep.

What happened next should prove very helpful to anyone with a cooked flyback that is unobtanium such as Philco # 32-8716-1. Don't bother looking in cross-ref books, Philco did not commit to a line of color TV to point where Merit-Thor-Stancor-Ram and others made replacements for this particular one.

Next post details how to remove a deep-fried doughnut (secondary winding) and restore the flyback to operate with a common solid-state tripler.

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