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7 MHz SSB Transceiver

7 MHz Transceiver	Advice for beginers	Winding Coils	Test Equipments
Power Supply	Variable Frequency Oscillator	Carrier Oscillator	Audio Amplifier
Mic Amplifier	Receiver Front End	MC1496	Ladder filter
IF Amplifier	Linear Amplifier	Power Amplifier	Block Diagram
Circuit - Part 1	Circuit - Part 2	Antenna	Conclusion

Block Diagram of 7MHz SSB Transceiver

The microphone amplifier / modulator is build around LM324 which is a quad op amplifier provides enough quality amplification to voice picked up by the condenser microphone.

First and Second Mixer's are build using popular Double balanced modulator IC MC1496.

The AF Amplifier circuit used OP amplifier LM741 as pre amplifier and LM386 as power amplifier.

Most of the signal switching is done though Diodes. Relays are used to switch veriable frequency oscillator and beat frequency oscillator.