Cable Crypt (photos)
DESCRIPTION:
The photographs have been pulled by decoder Cable Crypt (old). For the automatic change of polarity have been used chip MC74HC74 and MC14584BCP of company Motorola. For the circuit of amplification 2 transistor bc548 and bc337 and a capacitor 220mF.
RESULTS:
PRO: Perfect decoding of picture (of course without sound). In the SuperSport they appear certain shines but these they are minimal and no annoying, without getting of your attention. While existed the a possibility to prgram a microcontroller (pic12c508) in order for this shines to disappear, this did not happen because the result it was been already more from satisfactory.
CON: you can't anymore use the Cable Crypt as a TV Tuner because there isn't any sound.
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Reverse Activities™ 2003
