This amplifier for recording heads was found in a Radio Electronics from September 1963. The circuit uses period transistors but can be modified to work with modern transistors.
This circuit from a 1995 documentation triggers a set of lamps when the power goes out. In a more...
With a coil formed by 7 turns of 26 AWG wire this circuit operates in the 27 MHz range. But you...
The assembly of a good multimeter meets only one obstacle: the precision that is obtained depends on...