Originally designed for WWV (Standard Time Station) signals, it lets 1 kHz tones pass by rejecting the 440 and 600 Hz tones emitted by the station. The circuit is from a 1964 Electronic Design.
This configuration, which appears in other projects in this section and on the website, shows how...
This circuit should be placed between a turntable and recorder or playback media from the input to...
This goniometer for the medium wave range was found in a 1967 documentation. It can be adapted to work...