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Fox Delta
http://www.foxdelta.net/detector/detectorsch.pdf
Metal Detector Schematic and Parts List for: FET Metal Detector with IC Audio amplifier Parts List: L1 Loop Antenna (Details on Detector Doc) L2, L3 1mh RFC L4 100uh RFC D1 LED 3mm U1 78L05 5V Regulator U2 LM386 Audio IC 8DIP LS1 8 ohms Speaker Q1,2 MPF102 FET / J310 Q3 BF998 Dual gate MOSFET J1-J2 Male/Female Loop Antenna Connectors
FET metal detector by nina gajjar - Fox Delta
https://foxdelta.net/detector.html
Making a metal detector was always my dream. I was curious listening to those beeps at airport for which dad explained that they were metal detectors. ... The Mixer is BF998 dual gate MOSFET. Audio IC amplifier is LM386 which drives a speaker. I have used a stabilized supply for two oscillators and mixer. ...
AN-32 FET Circuit Applications - Texas Instruments
https://www.ti.com/lit/an/snoa620/snoa620.pdf
FET Cascode Video Amplifier The FET cascode video amplifier features very low input loading and reduction of feedback to almost zero. The 2N3823 is used because of its low capacitance and high Yfs. Bandwidth of this amplifier is limited by RL and load capacitance. JFET Pierce Crystal Oscillator The JFET Pierce crystal oscillator allows a wide frequency
Metal Detector Based on the TDA0161 - Blogger
https://dacoram.blogspot.com/2017/03/metal-detector-based-on-tda0161.html
Power amp 400W IRFP448 Circuit Amplifier circuit today,We would like to show you for the MOSFET 400 watt amplifier is amplifier on my kW shares the same circuit and basic PCB layout. The only real difference is the number of output devices to the device. We have using The IRFP448 design while the MOSFET amplifier 14 O / P devices.
Metal simple and powerful detector - ElettroAmici
https://www.elettroamici.org/en/metal-detector-semplice-e-potente/
The metal detector is composed of two main units, a transmitter that uses the generator of narrow pulses to be 150us, retrieved from the literature on the network is the most efficient solution and to lower consumption. These pulses amplified by a …
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