Found in 90s Radio Electronics, this small transmitter has a good range. L1 is formed by 3 + 3 turns of wire 24 around a pencil as a reference.
The high sensitivity of this type of SCR recommended in our assemblies allows it to be triggered by low...
The circuit shown is from National Semiconductor's Linear Applications Handbook. It makes use of...
September 2016 - It can be obtained from Mouser Electronics the new integrated circuit µCC21520...