This circuit detects when there was a power cut, triggering the indicator circuit around it. The circuit is powered by the voltage of a source connected to the grid.
More channels can be added to the input of this mixer. We found it in old English documentation. The JFET...
This interesting circuit found in American documentation generates a busy signal, without you...
The purpose of this circuit is to produce a 50 uV harmonic at 1296 MHz from a 0.15 to 1 V input of...