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500W Mos-Fet Power Inverter from 12V to 110V/220V
Posted on Thursday, October 7, 2010   •   Category: AC / DC Innveters


This circuit will provide a very stable "Square Wave" Output Voltage. Frequency of operation is determined by a pot and is normally set to 60 Hz. Various "off the shelf" transformers can be used. Or Custom wind your own FOR BEST RESULTS. Additional MosFets can be paralleled for higher power. It is recommended to Have a "Fuse" in the Power Line and to always have a "Load connected", while power is being applied. The Fuse should be rated at 32 volts and should be approximately 10 Amps per 100 watts of output. The Power leads must be heavy enough wire to handle this High Current Draw!


VHF Audio Video Transmitter
Posted on Thursday, October 7, 2010   •   Category: FM Transmitters




VHF/UHF TV Modulator
Posted on Thursday, October 7, 2010   •   Category: FM Transmitters


Simple oscillator that generates a frequency in the VHF or UHF region. The oscillator is modulated with the video signal and the modulated carrier wave thus generated is fed into the TV set's aerial input via a cable. Then all that remains to do is tune the TV to the correct frequency.


UHF-TV Preamplifier
Posted on Thursday, October 7, 2010   •   Category: Antennas




0.1 - 3.5GHz Prescaler
Posted on Thursday, October 7, 2010   •   Category: FM Transmitters


This handy prescaler divides input frequency by 1000. It takes maximum input frequency of 3.5GHz and converts it into 3.5MHz that may be measured using standard frequency meter.


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