This is the receiver for the previous circuit, also found in 90s Radio Electronics. The circuit operates at 2.25 MHz, detecting variations in signal frequency due to the Doppler effect.
November 2016 - The new Ohmite TO-126 power resistors in the range of 0.09 Ω to 51 kΩ with...
With this circuit found in an American documentation from 1969 it is possible to vary the...
This circuit was found in the June 1991 issue of Radio Electronics magazine. The circuit uses two...