Mar 6, 2008 #1 S saeed131 Junior Member level 2 Joined Dec 5, 2007 Messages 21 Helped 2 Reputation 4 Reaction score 0 Trophy points 1,281 Activity points 1,387 hi . how does this circuit work? what does this do? plz help me?
Mar 6, 2008 #2 FvM Super Moderator Staff member Joined Jan 22, 2008 Messages 52,427 Helped 14,752 Reputation 29,786 Reaction score 14,105 Trophy points 1,393 Location Bochum, Germany Activity points 298,127 Video transmitter (CH 2-4): Q3 audio subcarrier FM oscillator, Q1+Q2 modulation amplifier, Q4 oscillator, Q5+Q6 output stage.
Video transmitter (CH 2-4): Q3 audio subcarrier FM oscillator, Q1+Q2 modulation amplifier, Q4 oscillator, Q5+Q6 output stage.
Mar 7, 2008 #3 Borber Advanced Member level 5 Joined Dec 31, 1999 Messages 1,600 Helped 235 Reputation 472 Reaction score 111 Trophy points 1,343 Location on third flor Activity points 11,863 + D1 video clamper Q3+T1 5.5MHz frequency for PAL B/G video modulation: negative AM audio modulation: FM
+ D1 video clamper Q3+T1 5.5MHz frequency for PAL B/G video modulation: negative AM audio modulation: FM
Mar 7, 2008 #4 S saeed131 Junior Member level 2 Joined Dec 5, 2007 Messages 21 Helped 2 Reputation 4 Reaction score 0 Trophy points 1,281 Activity points 1,387 what is the shape of output signal?
Mar 8, 2008 #5 L linaweku Junior Member level 1 Joined Mar 2, 2008 Messages 17 Helped 1 Reputation 2 Reaction score 1 Trophy points 1,283 Activity points 1,371 what a software that u use?
Mar 8, 2008 #6 Sadegh.j Advanced Member level 3 Joined Nov 29, 2006 Messages 749 Helped 48 Reputation 98 Reaction score 15 Trophy points 1,298 Activity points 5,585 I think Q1+ Q2 are LNA and Q4 is an oscillator. The rest is the same as others have mentioned.