new vector monitor.

I was working on a HV box 2.

here is my contribution.

1 was going to use a philips tv transformer because they are cheap,
using a WG7000 transformer may be better for international reasons.

regulation is easy, use an opto-isolator on one of the low-voltage outputs for
feedback.

like everybody else i was thinking of a 120v feed through a monitor isolation
transformer.

i wanted to use a switching powersupply i.c. to do all the work, but
unfortunatly all the ones i have seen so far run too fast.
the TOPSWITCH series runs at 100khz!!! the fastest i think we could risk is
24khz.
after that the transformer is in the twighlight-zone and the lifespan and
performance is anybodies guess.

I AM NOT GIVING UP ON THIS, i will find a switching circuit to do the job - if
it takes forever!!!

ABOUT THE YOKE - if we say for the sake of cost that we need a fast but std
yoke, how about using a yoke for a svga monitor, they can run vertical
deflection twice as fast as a tv yoke.

if we have to go custom then we should think VERY carfully about what tube to
use, you cant change your mind afterwards.

i would choose a modern flat tube, size 20-29".
it would be good if the same yoke could work on a range of tube sizes from the
same series.

slightly off topic, anybody thought about making a vector monitor from an old
radar terminal?

L8r.

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Received on Thu Jun 13 09:13:44 2002