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September 1, 1980 · TAP

TAP No. 64 - Channel 68 Decoder

TAP No. 64 - Channel 68 Decoder

A heavily technical, poorly-scanned article presenting a block diagram and circuit description for a decoder aimed at a subscription/pay-television signal (‘Channel 68’), including a pre-amp module, product detector, low-pass filter stage, and video amplifier. The surrounding text is too degraded in this scan to fully transcribe, but the diagrams and component labels indicate a hobbyist descrambler project for over-the-air pay-TV broadcasts, a technology common in several U.S. markets in the early 1980s before cable took over.

Project Page Open Link

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