This modulated transmitter for a light beam communication system was found in the 1991 Electronics Experimenter Handbook. The circuit modulates a LASER diode.
This oscillator circuit with two transistors is from a 1965 documentation. The circuit is of the...
This circuit was obtained in an old documentation, but it is still current by the used components....
This guitar effect pedal was found in 1982 documentation. The circuit can be easily assembled with...