Philips CRT Viewfinder
This viewfinder was hacked and modified the same was as the first one. The focus of the viewfinder seems to be dependant on the voltage input as some accidental tests have shone. The tube also seems to be a wide screen which is probably to do with the shape as well as internal electrical configurations. The tube is a very common type used in CRT viewfinders.
Some Star Wars Domlition because why not. Also upside down play for extra dick waving points.
With the mirror removed you can see the face of the CRT & the bezeal cutting out most of the scree viewing area. Not sure why the manufactures did that, would of made more sence to have the whole screen viewerble due to its small size.
The big difference between this one to the other one I built is not the S-VIDEO adapter. Its the oscilloscope hack which was sort of successful. I added a switch so I could switch the vertical coils between the driver chip in the viewfinder and the home made probes that can be linked to signals. In scope mode when signals are applied you will not see waves, you will only see lots of dancing horizontal lines. While this has no practical use as a scope, it creates some interesting patterns when linked to a music device.
The device is interesting in its size and shape, round CRTs only other places of existence is in vintage equipment and scientific equipment. The fly-back lead does not connect directly to the top of the tube, it instead connects to the plug at the back The Sony the fly-back connects to the tube conventionally. There is only one IC in the hole device just as in the Sony viewfinder. The uses for such a device are almost endless, here's a few: Small video portable monitor; HUD; computer display; night-vision sight; CRT clock; mini TV; to display a robots status instead of an LCD/VFD; scope and portable game console. The uses for such monitor are endless as something's use is only limited by ones imagination.
Underside of the display, only controls are, focus, brightness & diopter. VR manufactures, take note. Vintage displays from the 80s had diopters, there is no excuse.
Opened you can see the CRT with the deflection yoke & pretty standard componets of a monocrome monitor from the 80s. Just shrunk down to quite an impressively small size.
The underside of the PCB, you can see where the silkscreen is diffrent to highlight the high voltage area. While not dangrus, it will give you a nip which can catch you off guard.