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Composite video from a ZX Spectrum: Open up the modulator. Desolder the resistor connected to the phono plug. Cut the two wires shown. Solder 100uF electrolytic capacitor (10 or 16V) negative leg to the wire shown, feed the positive leg through the spare hole in the box and solder to the centre pin of the phono plug. Done.

Published inVintage Tech

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