This old fashioned transistor amplifier was found in a publication of the year 1958. Transformer are the critical components in the circuit and power comes from 6 D cells.
This is the complete circuit of a multimeter using a 50 uA instrument with a 2k coil. The circuit...
Found in a 90s Linear Technology documentation, this circuit supplies current to a load through a...
This oscillator uses one of the four ports of a 74C14 integrated circuit and can generate 100 kHz...