5 tubes QRP SSB Transceiver for 20m ham band


Posted on Apr 28, 2012

This true SSB transceiver is built around just 5 vacuum tubes, with no transistors nor ICs. Superhet receiver with AGC and S-meter drives a loudspeaker, 5W transmitter, very stable VXO uses CB crystals to cover 20m ham band. A project for skilled RF technicians with a good set of instruments.


5 tubes QRP SSB Transceiver for 20m ham band
Click here to download the full size of the above Circuit.

The architecture of this transceiver is based upon reversible use of its blocks. The 5 tubes, diode mixers and SSB filter all operate during reception and transmission. SSB filter is homebuilt 4poles ladder filter. Performance tested at bench and on-the-a




Leave Comment

characters left:

wik   Mar 28, 2018

Very nice! thanks

excelente"!   Mar 10, 2008

excelente diseno para quienes aun "queremos" a las valvulas electronicas!!! mis reconocimientos.

New Circuits

.

 


Popular Circuits

Cut Phone Line Detector
Lazy ISP Socket Adapter
Sawtooth to triangle converter for oscillator
linear regulator
Multiple-input-detector
Fixed-frequency-generator
Balance Indicator
10M Dsb Transmitter Circuit
SEM/STEM detectors and CRTs
ATMEGA USB 001
Oscillator circuits
Op Amp 741 Inverting Amplifier Circuit Simulation with output wave form and working
Three transistor audio amplifier
AT89C51-12PI AT89C51 80C31 Microcontroller With 4K Bytes Flash Use AT89S51
Symmetrical power supply circuit electronic project
Writing text on LCD Module using 89C51
LED Series Resistor Calculator
555 meter circuit diagram of a DC voltage



Top