Idea- Ultrasonic Remote-Controlled Digital Converter Box

[ChrisW6ATV]

Yes, I am sure you could do this. In fact, it could be fun to use an old remote control with a DTV box and a non-remote-control old set.

Rather than pull parts from an old set, how about using an ultrasonic transducer as a microphone, connected to a circuit with two LM567 (I think) tone-decoder chips tuned to the frequencies from the Space Command remote control? You might start by connecting such a transducer with an ultrasonic-capable preamp to an oscilloscope to learn the frequencies, then build the 567 circuits using a signal generator for test input.

[fsjonsey]

Originally Posted by ChrisW6ATV

Yes, I am sure you could do this. In fact, it could be fun to use an old remote control with a DTV box and a non-remote-control old set.

Rather than pull parts from an old set, how about using an ultrasonic transducer as a microphone, connected to a circuit with two LM567 (I think) tone-decoder chips tuned to the frequencies from the Space Command remote control? You might start by connecting such a transducer with an ultrasonic-capable preamp to an oscilloscope to learn the frequencies, then build the 567 circuits using a signal generator for test input.

That's a great Idea too. Maybe build the entire thing into the cabinet from an old UHF converter.
My original idea was to retrofit a set so that you could never tell the DTV box was inside, and make the modification completely reversible so that the set could be returned to original condition by simply reconnecting the tuner drive motor.