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.
Alorium Tech XLR8 Application Accelerator & Development Board is an Arduino-compatible board that...
The presented circuit generates signals in a 1:10 frequency range depending on the Ct capacitor. See the...
This configuration was found in an American publication from the 90s. Operators admit equivalents just...