This is the circuit diagram of UHF band TV antenna booster with 15dB gain power. This low cost antenna booster is simple and easy to build.It use single transistor BF180 to boost te UHF signal.
Since this is an active circuit of UHF TV antenna booster, it will require a 12v power supply to operate. Regulated power supply is recommended for better circuit performance.
This circuit formed based on BF180 UHF Transistor. The first stage is an band pass filter constructed by the C1, CV1, L1, L4, C7 and C3, the second stage is a base-common voltage amplifier with low input impedance to match. air core coil construction and calculation here. After assembling, pack it into a proper metallic box and connect the ground of the circuit to the box to reduce noise effect.
The BF180 is equvilent NTE161 Transistor NPN Silicon VHF/UHF Amplifier Mixer/Oscillator. You mau try NTE161 transistor to replace the BF180.
I want to VHF and UHF tv high gain boster antena circuit diagram
الکترونیک
King regards
sir plese clear my confusion that
where is antena in put and tv in and out in this diagram
[COLOR=”Red”][SIZE=”6″]UHF TV Antenna Booster
[/SIZE][/COLOR]
I want to VHF and UHF tv high gain boster antena circuit diagram
hi, I looking for diagram to a tv DAYTEK model LCD32 year 2007, it is in Cuba a thunder burn a part
and the technician need a diagram to fix it, can you help?
thank