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2N2/40 Transceiver Specifications
Receiver Narrow front end: 150 KHz bandwidth Diode DBM first mixer Sensitivity:  -128 dBm MDS (~0.1 uvolt) Very low noise VFO: 100 KHz band coverage     200 Hz maximum drift     Linear varicap diode tuning 3 pole VBW crystal filter:  300-700 Hz Push-pull audio output for speaker operation	Transmitter 2 watts output:  three parallel 2N2222A Excellent r.f. stability QSK keying
Overall 22 - 2N2222 transistors; four are 2N2222A metal case types All circuits modeled with MicroSim DesignLab or Electronics Workbench Manhattan style construction 4X5 inch footprint on prototype

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