[sdiy] tiny oscilloscope from camcorder CRT viewfinder

[Ken Stone]

They do have deflection coils - often the yoke is bigger than the tube! I
collect miniature picture tubes.

>I would hazard a guess that building a "vector-to-raster" adapter
>as published in some 80's issue of ETI would probably be more complicated
>than simply driving the deflection coils directly.
>---- this thing has coils ? are we sure it isn't electrostatic plate
>deflection ? ----
>Either way, with such a small screen you cannot expect high accuracy so
>circuitry could be fairly simple, stealing the existing HT power supply
>and adding a couple of (electrically floating) deflection amps and
>a ramp generator for timebase.
>
_______________________________________________________________________
Ken Stone   sasami at hotkey.net.au
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