The circuit shown indicates voltages from 10 to 14 V used to monitor automotive voltage. One or two LEDs light up depending on the voltage.
This charger was found in an old Motorola manual using an SCR from this company, which, however, can...
This circuit visually indicates that a high voltage is present in an outlet or other point. The...
This simple circuit of effects is interspersed between the instrument and the amplifier. It is...