Old Projects
      ( Arv - K7HKL )

CAPACITANCE METER  ( Measures 3 pf to 1 mf )  555 oscillator with integrator


DIP METER  ( MPF-102 with 2N2222 Meter Amplifier )  400 KHz to 170 MHz


Audio Oscillator ( Wein Bridge with Op-Amps) 30 Hz to 30 KHz


QRP Watt Meter ( from 7.2 MW FS to 5 W FS )  5 Watt Dummy Load



Signal Tracer ( Two op-amps followed by LM-380 ) Lots of gain!


Transistor Tester ( Measures DC gain and leakage )



Calibrated Capacitor ( 3 X 500 pf )

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