The transistor on this mixer can be any general-purpose transistor. The number of entries can be changed. We found it in an old documentation. Input and output cables must be shielded.
We found this circuit in the Radio Electronics magazine of May 1977. The circuit has the frequency...
This 200 kHz oscillator was found on a 90's EDN. It consumes only 2.8 mW and has CMOS compatible...
This tracker for audio and RF signals was found in old American documentation. Transistors and...