This modulated transmitter for a light beam communication system was found in the 1991 Electronics Experimenter Handbook. The circuit modulates a LASER diode.
In the figure we have the use of one of the four existing amplifiers in the LM2900 and LM3900 as a...
This circuit was obtained from a Texas Instruments 1985 document. The circuit is powered by 1.5 V...
This circuit was found in a 1969 General Electric documentation. It triggers a sensitive high...