UHF TV Linear amplifier 5 W by BLW98

Thursday, November 27th, 2008

This small circuit is a Linear amplifier for driving small UHF TV transmitters. Its gain is 7dB and can amplify a signal between 450-800 MHz. You can drive the circuit with 1 to 1,5 Watts signal. Better use double layer PCB with the second layer connected to earth. Use a stabilized power supply 25 volts [...]

TV Transmitter by 2N3904

Saturday, April 12th, 2008

This circuit from Poptronix allows you to send video to any television in the house. It’s as educational as it is practical. Since it’s from Poptronix, a circuit board layout is included…. Related Links More circuit RF Transmitter More circuit TV Transmitter 1 Watt Universal RF Amplifier VHF Audio Video Transmitter by BF494 TV Signal [...]

S-video to composite video adapter

Friday, October 5th, 2007

This simple adapter can be used to convert Y/C video (S-video) to a composite video. This adapter is useful in cases where your video output device has only S-video output but your signal source accepts only composite video input. This circuit works with both PAL and NTSC video standards. Y-ground——————+ +———- RCA/composite ground C-ground——————+ Y————————-+ [...]