This modulated transmitter for a light beam communication system was found in the 1991 Electronics Experimenter Handbook. The circuit modulates a LASER diode.
This circuit was obtained in a Hobbyst Handbook from 1990. The circuit can be easily assembled...
This circuit was obtained in an old American documentation. The integrated circuit used is...
This circuit produces a signal that has the waveform of the sound produced by or near the banjo....