Found in a 90s Popular Electronics, this circuit uses a simple 9 V source. The power can be used from the circuit with which it works.
This circuit is from the 2005 Linear Technology Application Manual. The circuit must be powered by 5...
Originally recommended to give a tone of transmission in equipment of the 60s (tubed) this circuit is...
September 2017 - Texas Instruments TPS543C20 Step-Down Converters can be found on Mouser...