Hello.

Do anyone have schematics for a Philips "Video 40" CCTV camera with a 1/2" Vidicon tube ?

I found some pics of one (the first three pics) http://picasaweb.google.com/AstroTasmania/VideoCamerasLensesUsedForAstro#5302758260120547554

Thanks in advance,

// Per.

Update: I found a "real" model number of the camera.

It's called LDH 0400/01 / NC 8925 040 00101
220V AC 50 Hz 8,5W :D

I find it amazing that google cannot come up with a schematic or user manual, this is from Philips, they were a great brand back in those days.

A funny feature of it - in the back there is a adjuster knob that controls the movement of the whole vidicon assembly up in the front of the camera via a turning rod, quite ingenious.

// Per.

Update 2:

Tried connecting my two Video 40's to my TV's CVBS input and a video capture card.

All i get i a grey screen.

Looking at the BNC connector, my cameras puts out this:

http://zapro.dk/div/video40.jpg

Waving my hand in front of the lens does change the video signal a bit on the scope, but still does not show up on a TV.

Something seems fishy! The sync is inverted ???

Maybe the output signal is not CCIR standard video ?

// Per.

Update 2:

Tried connecting my two Video 40's to my TV's CVBS input and a video capture card.

All i get i a grey screen.

Looking at the BNC connector, my cameras puts out this:

http://zapro.dk/div/video40.jpg

Waving my hand in front of the lens does change the video signal a bit on the scope, but still does not show up on a TV.

Something seems fishy! The sync is inverted ???

Maybe the output signal is not CCIR standard video ?

// Per.

The sync and blanking is quite normal (negative sync on baseband video). "black" level should not be so high, and obviously you should have a much bigger peak-to-peak video swing.

Edit: do you have a lens on the camera? If not, the automatic gain will set the general video level to 50% as you see.