This car battery monitor was featured in the January 1988 issue of Radio Electronics magazine. The circuit uses common transistors and has 3 levels of indication made with common LEDs.
The circuit shown in the figure is based on the ST Microelectronics TDEO0160 (www.st.com) and...
This circuit for communications receivers was found in the January 1974 issue of Radio Electronics...
Found in old English documentation this circuit evaluates the power of a transmitter. The circuit has...