This longwave signal booster circuit was found in the 1995 Encyclopedia of Electronic Circuits Volume 5. Note the dimensions of the board. The transistor is a general-purpose transistor.
March 2017 - Texas Instruments' new TPS2H160-Q1 smart switches can now be obtained from Mouser...
This circuit uses a common multimeter on the voltage scale. The calibration of the scale should be...
September 2016 - It can be purchased from Mouser Electornics the iW1818 of Dialog Semiconductor, a...