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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

VFO

Variable frequency oscillator uses two numbers of BC548. For 40 meter band VFO oscillates form 2.567 MHz to 2.667 MHz which on mixing with 4.43 MHz generates 7.0 MHz to 7.1 MHz. If you have a frequency meter it is easy to calibrate the VFO, otherwise connect a 2J gang condenser in parallel with VFO coil and adjust it to receive ham stations. VFO is fixed inside a small aluminum box.