what do you need:
- a viewfinder from an old camera.
- an old 380 line black and white camera
- six Infrared LED's
- three 15 ohm resistors
Step 1: The viewfinder
The viewfinder used to be connected to the camera with 5 cables.
When I started measuring them I noticed that I just needed the first three cables those where.
- +5 volt
The viewfinder contains a 0.7 inch picture tube, a high voltage power supply and some calibration pots. The size of this module is only 2,5 x 5 cm.
Therefore the high voltage power supply could for the picture tube could cause serious injury if you touched it.
This is why in attached new cables to those connection points en put the viewfinder back together.
Now our output device is ready.