We find this circuit in American documentation from the 1980s. It consists of a frequency folder using a varicap. The capacitors and coils depend on the frequency of operation.
Pressing and releasing S, the capacitor C1 charges and discharge slowly through the oscillator...
We found this circuit in a 2005 Linear Technology manual. The circuit makes use of the LT6101 and...
This circuit was obtained in an old American manual. The circuit is valid for any operational. The...