Recent content by 3kids

i apologize for not explaing my past, I have been an electronic technician for 20plus years, and have done small design work. i basically do systems integration and A/V installs. I have been out of it for so long, i just need to quicklyrefreshen myself, Again , the switcher basically uses an...

you need to filter the power supply , always a must,

Can anyone draw me diagram for tally control for a video switcher. The tally output is a 15 pin D-sub connector. Pins 1 through 8 are correspondents to each input of the switcher. Ex: camera 1 triggers the out of pin 1 of the tally output. It uses an open collector circuit for each pin. these...