Found in a 73 magazine for radio amateurs of the 90s, this circuit provides a 2 kV voltage with 7.5 mA of current for HeNe laser.
This common configuration source was obtained from old documentation, so the components can be...
This third-order filter was found in a 1975 publication. The circuit must be powered by a...
This circuit is basically the same configuration as the previous one with a power stage with...