[trinescope]

Right now I am trying to deal with the failed vertical convergence transformer. I was not able to get a turns count due to damaged wires, and I gave up after unwinding over 6000 turns of wire which kept breaking due to corrosion. The primary was still good and I was able to get a resistance reading from that winding, but the secondary was open and I don't know a whole lot about it. The wire sizes on both windings measure the same (.003") which corresponds to a 41AWG wire. Knowing the wire resistance, winding resistance, and the approximate turns per foot of wire I get 2000 turns for the primary which would seem about right. Unfortunately the secondary resistance measurements given on the Westinghouse schematic are incorrect. Since the Sams folder on this model gives an RCA part number for this transformer as being the same as that used in the CT-100, I looked at that schematic and found very different resistance measurements as well as in the Sams folder on this set. I'm really not sure what to go with here. Also, the ratio on the secondary winding either side of the tap doesn't jive with what I know about the AC voltage requirements given on the 15GP22 datasheet. The datasheet gives a convergence/focus voltage ratio of 900:225, or 4:1, but the transformer looks more like 2.5:1 based on the resistance readings given.