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.
November 2016 - TBC8x7 Series Bipolar Transistors with 60 V Vcbo and 150 mA Collector Currents can now...
This circuit was found in a 80’s American documentation. The adjustment trimpot is from 47k to...
This circuit is used to protect an amplifier from excessive power output that would cause problems for...