Fourth-Order High Pass Filter 741 (CB25597E)

This 100 Hz filter was found in the August 1993 issue of Electronics Now. The components can be modified to operate at other frequencies.

| Clique na imagem para ampliar |

3-stage amplifier (CB23710E)
This low voltage circuit was found in the November 1960 Radio Electronics magazine announcing new...
Debuncer 4049 (CB24877E)
Another of the many anti-bounce circuits that we have in this section of our website. This one...
VHF Receiver (CB19596E)
We found this circuit in a European publication from the 1980s. The circuit uses germanium...