Tag: Oscillator

May 02

30m QRSS Beacon Transmitter

This beacon puts out about 0.5W on 10.140MHz. It is intended to be used for Slow Morse (QRSS) operation.The actual design is by Colin G6AVK and PCB by 9H1LO.The varicap is a normal 3mm red LED. Transistors can be 2N2222 or 2N3904, PA final 2N3866 or 2N4427.

May 02

HF Frequency Locked Loop by IK3OIL

This design by IK3OIL has been quite popular, especially used as BITX VFO. Some Indian hams have also created a kit from these designs. Boards mounted in tin plate enclosure 16×1 LCD Display