This circuit for VCR recording heads was found in the February 1990 issue of Radio Electronics magazine. The circuit is use do observe signal in an oscilloscope.
This 5.1 MHz oscillator was found in a 1980s American documentation. The used operational...
This configuration has already been used several times in many of our projects and can be found in...
This simple circuit makes use of neon lamps to indicate the voltage of a power grid. The lamps are...