Seeking advice on a found Chromacolor I

[drh4683]

This is a great TV. It's a 14DC15 chassis, introduced in 1973 and last offered in 1975. The '75 models I've seen were all produced sometime in 1974 however, I've yet to find a 14DC15 built in '75. That being said, this would be the last of the "mostly tube" hybrid chassis, while the legendary 4 tube hybrid would remain as Zenith's very last tube chassis in production until mid 1975. The model# of your set is either D3721 (1973), E3721 (1974) or F3721 (1975), all being identical in every way except for the model number prefix which designated the model year. The marketing name for this set was called the "Hals" and it was Zenith's lower end "economy" model TV. A step up would be a 14DC16 chassis which would have had AFC or in some cases, Space Command 100 remote control. I have this exact same set in my collection that I've had for years. I used to find so many of these back in the early to mid 90's and they are almost impossible to find now. You are fortunate to have found this for it's a great example of a quality tube type zenith TV in a small package.

It looks like it has much potential here. Looks like you need to adjust the color killer control so the colored snow *just* disappears. The color killer is on the back of the chassis. It's also a hot chassis. A cost cutting move which also resulted in the added benefit of weight reduction by removing the power transformer. As a result, the chassis can either be hot or neutral depending on which way you plug the set into the mains voltage. If you work on the set with the back removed and plugged in, be sure that the chassis is on the neutral leg of the 120v mains, otherwise you could be in for a surprise if you touch something and you are grounded.

You can buy an HLLY 50 mw TV transmitter on ebay, just input a composite video source from the output of a DVD to DTV converter and transmit on essentially any TV channel between 2-83. A great accessory so you can enjoy the old TV's without the mess of wires and cables hooked up to the set.