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"Work in progress" detector
par JcDenton
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Work in progress - detector
Utilizes Dr. Stiffler SEC 15.1 with modified values. 470pf to base, L2 unknown inductance, which is wrapped on 3d coil form, trimmed by mm for tuning. L3 adjustable. Transistor - mpsa06
Detector part is a simple array of 2n3904 and 2n3906 npn,pnp transistors for gain, to switch on the led or buzzer. SEC is an advanced circuit, and must be properly tuned, all 3 coils with precisely tuned inductance,capacitance, resistance values, in order to achieve efficient results.
https://www.youtube.com/watch?v=PkqsA-J2pzA
Utilizes Dr. Stiffler SEC 15.1 with modified values. 470pf to base, L2 unknown inductance, which is wrapped on 3d coil form, trimmed by mm for tuning. L3 adjustable. Transistor - mpsa06
Detector part is a simple array of 2n3904 and 2n3906 npn,pnp transistors for gain, to switch on the led or buzzer. SEC is an advanced circuit, and must be properly tuned, all 3 coils with precisely tuned inductance,capacitance, resistance values, in order to achieve efficient results.
https://www.youtube.com/watch?v=PkqsA-J2pzA
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