Video Signal Amplifier circuit diagram
The construction should not present any difficulties if you follow the circuit diagram carefully and place the components in their place as it is outlined on the component side of the p.c. board. Solder first of all the pins, then the resistors, the capacitors making sure that the electrolytic are connected correctly with respect to their polarity and finally insert the transistors in their places and solder them very carefully as overheating during soldering can destroy them. When all the components have been soldered make a careful inspection of the circuit and if you are satisfied that there are no mistakes make the following connections:
- Supply voltage at points 3 (+12 VDC) and 4 (-)
- Input signal at points 1 (signal) and 2 (common).
- Outputs 5,6,7 (signal) and 4 (common).
- Supply voltage at points 3 (+12 VDC) and 4 (-)
- Input signal at points 1 (signal) and 2 (common).
- Outputs 5,6,7 (signal) and 4 (common).