DBLEXPOSURE wrote:
Quite an undertaking. My first thought is, "be careful" I am guessing the
anode voltage on that tube is 3 to 5Kv and will be present even with no
power is applied. Learn how to discharge the tube safely. If you are
nervous at all doing it, then you shouldn't be doing it, especially alone.
Use the, One hand in the pocket rule, Have a qualified tech demonstrate it
for you.

Learn and understand where the high voltage is located on the circuit board
and be conscious of it when fiddling with the circuit when it is live.

Check and double check. Don't worry about my safety.

Secondly, the deflection circuits are not designed to run at typical
computer monitor frequencies. This might prove to be difficult.

Which is why I decided to go with a resolution close to the original TV
resolution, as I mentioned in the original post. If I can get 256 lines
at 50Hz, I'll be very happy.

If you are
going to redesign the deflection circuits and have a limited knowledge of
electronics then, well, you have a long road ahead of you.

It just so happens I found this:
http://www.hanssummers.com/electroni...trumanalyser2/

I found a small B/W junk TV/radio/cassette recorder, and when I looked
inside it had a very conspicuous chip labeled AN5151, so I googled for
datasheets. What I found was the site above. The guy (Hans) has done
precisely what I want to do: he took a small B/W TV with an AN5151 chip
in it and turned it into a computer monitor (he uses it for a spectrum
analyser). The AN5151 takes care of generating the sweep signals from
composite sync, and he built his circuit by simply drawing a diagram of
the board in the TV and moving the relevant components to a new board. I
think I'll do something similar. Hans' site has shown to me that this is
not an unrealistic goal.

Not trying to be discouraging, whether you successful or not you will
certainly learn something. But do be careful.

I appreciate both your reply and your concern, but rest assured that I
take the voltages seriously and have read up on the matter. I am also
not completely unexperienced in electronics, just in this particular field.


Bjarni