ISO: Sony "WATCHman"
ard at p850ug1.demon.co.uk
Thu Aug 17 18:33:10 CDT 2006
> > Do you have a pointer to anything worth looking into?
> > Small/tiny?
> You get lots of small TV tubes. Would a camera viewfinder tube be *too*
Although the screen on those is small, the CRT can be quite long (Either
mounted along the video camera body, or across it, with a mirror to
reflect the screen into the eyepiece).
> tiny? What about a Sinclair Flat Screen TV?
Be warned that that is a typical Sinclair design with some very
marginally-rated components (the HV rectifer diodes are nothing of the
The CRT is interesting, although quite wide, with the electron gun
assembly mounted alongside the screen and electrodes to deflect the beam
onto the screen.
If you want to use one, try to get the entire TV. You need some scan
correction (Due to the different distance of the 2 edges of the screen
from the gun, the natural raster is wedge-shaped!). The Microvision TV
contains a custom chip (22 pins IIRC) that contains this stuff, the scan
oscillators, the IF strip, and so on. Fortuately, it is possible to feed
composite video into it somwhow (I forget the exact details, I have some
I played around with one of these years ago, gave up when I got fed up
with the number of poor design decisions in the original....
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