TV Antenna Booster

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TV Antenna Booster (Tv anteninin sinyalini güçlendiren bir devredir..)
This UHF radio wire amplifier circuit or UHF antenna booster circuit utilize to enhance or lift the signals of the UHF band from 400 MHz to 850 MHz. This circuit is utilizing just a single transistor and gives 15dB amplification. L1 and L2 are equivalent to 2 turns of 0.5mm enameled copper wire wound on 3mm previous, both the loops are air core. L3 and L4 are equivalent to 10uH HF choke or 0.2mm 10 turns on the ferrite core. The current utilization of the circuit is between 5 to 15mA. To control the circuit utilize a choke loop so it will keep the DC voltage from entering into the TV.​
 
Son düzenleme:
Tv antenna UHF amplifier
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Tv antenna UHF amplifier components
L1 = L2 = 2 turns, 3mm Ø
L3 = L4 = 10uH or 10 turns, 0.2mm Ø on ferrite
T = 2SC3358
 
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TV Antenna Amp Circuit
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A very simple and cheap tv antenna amplifier circuit built with BF961 a NChannel Dual Gate MOS common transistor used for input and mixer stages especially for FM- and VHF TV-tuners up to 300 MHz.

L1 = L2 = 5turns / 0.8mm Ø / 5mm Ø / the second turn from ground.
This tv antenna amplifier can be used even as an fm receiver amplifier because it has a wideband amplification, so if you dont use it for the tv set you can receive your favorite radio stations in better conditions.
 
Son düzenleme:

fm anten kuvvetlendirici​

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L1 5mm çap üzerine 3 turdur. şaseye yakın 1. uçtan orta uç alınır. L2 3tur 5 mm çap üzerine sarılmıştır
 
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