Generally we use 40 dB/ 30 dB cable tv amp
These are 2 type Hybrid / FET
In Hybrid Amp use a single ic for increase signal so called as hybrid ic
In FET type use 4 nos field effect transistor so called FET.
In this FET model Transformer has 9 lead
1-2 = Primary 230 v AC
3-4 = Secondary 18v AC
5-9 = Secondary 0v, 30v, 40v, 50v, 60v
If input is 230 v AC then output in secondary 3-4 18 v . Now convert this 18v to dc with 4 - in4007 diode. filter with a 1000uF / 35v.
Then we get 18v dc.
Then use a 7812 Regulating ic for perfect 12v supply to amp ckt.
Ckt use 4 - FET with 3 terminal.
here i write voltage in image
any query comment me
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These are 2 type Hybrid / FET
In Hybrid Amp use a single ic for increase signal so called as hybrid ic
In FET type use 4 nos field effect transistor so called FET.
In this FET model Transformer has 9 lead
1-2 = Primary 230 v AC
3-4 = Secondary 18v AC
5-9 = Secondary 0v, 30v, 40v, 50v, 60v
If input is 230 v AC then output in secondary 3-4 18 v . Now convert this 18v to dc with 4 - in4007 diode. filter with a 1000uF / 35v.
Then we get 18v dc.
Then use a 7812 Regulating ic for perfect 12v supply to amp ckt.
Ckt use 4 - FET with 3 terminal.
here i write voltage in image
any query comment me
cable tv amplifier cable tv amplifier price cable tv signal amplifier cable tv amplifier with gain control cable tv set top box cable tv amplifier ebay cable tv amplifier power consumption cable tv amplifier circuit
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