This circuit uses a high brightness LED to simulate a LASER. We found it in a 1991s PE Hobbyst Handbook. The components used are all common.
The integrated circuit used in this 80's mixer is the LM301A. However the circuit can be used to...
We found this circuit in a Motorola documentation from 1978. The circuit is based on the LM324...
This old slide projector control circuit was found in an 80s Hands On. The circuit uses modern...