AltechMYOB wrote:RONALD MCDONALD wrote:Here is a circuit that could form part of the diversity controller. It's a four channel video switcher using cheap and common
components. The I.C. marked as IC 1 (SN74139) would be replaced with your pic or what other processor your using.
I've used this circuit for switching between security cameras and it works well.
enjoy
Hi RM... thanks for posting. Did you ever draft a PCB for this cct & if "yes" is it available?
tnx
Here is the pcb you requested it is exactly 3 x 2 inches and is as viewed through the board from component side. take no notice of the tabs on the transistors they do not indicate the emitter lead.