Hallicrafter 509 image shifted horizontally

[old_tv_nut]

Originally Posted by Kevin Kuehn

I looked at the schematic in Riders and expect it's the same as your factory. Here's a few pages from Kiver explaining this basic horz AFC circuit along with an easier to follow schematic in figure 16. Requires a pulse from the horizontal output transformer.

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Thanks! Shows sawtooth derived from sweep pulse and +/- pulses from sync as I suspected. Nice to know I wasn't hallucinating about how it works.