Thanks for posting the schematic! Any suggestions on inductors?
My personal favorite, right now, is the Bourns SDR1806 series. I get 6W
out without too much trouble. Its a surface mount part, but its pretty big,
so tacking on leads is pretty easy.
All Electronics use to have a great
http://threeneurons.files.wordpress.com/2012/11/crt_tstr.gif
A lot of the old scope circuits used to run the cathode at a negative
voltage. (this required a well insulated filament transformer.) but
meant that the defection plates were almost at ground potential.
Yes, If I
A lot of the old scope circuits used to run the cathode at a negative
voltage. (this required a well insulated filament transformer.) but
meant that the defection plates were almost at ground potential.
Yes, If I ever made a real circuit, to use them, I would use the negative
cathode
Not that I'm biased (!), but if you are able to roll your own, you can
see two nice designs employing circle graphics at Grahame's
sitehttp://www.sgitheach.org.uk/scope2.html and
at Oscilloclock.com . These are based on David's original design at
cathodecorner.com .
There are many other
On Wednesday, 28 November 2012 15:39:43 UTC, Oscilloclock wrote:
Not that I'm biased (!), but if you are able to roll your own, you can
see two nice designs employing circle graphics at Grahame's
sitehttp://www.sgitheach.org.uk/scope2.html and
at Oscilloclock.com . These are based on
Here's the checker schematic.
http://threeneurons.files.wordpress.com/2012/11/crt_tstr.gif
It uses 2 MC34063 chips. One for the HV, and the other for the 6V heater.
10 signals go to the CRT tube.
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neonixie-l
On 12-11-28 02:59 PM, threeneurons wrote:
Here's the checker schematic.
http://threeneurons.files.wordpress.com/2012/11/crt_tstr.gif
It uses 2 MC34063 chips. One for the HV, and the other for the 6V
heater. 10 signals go to the CRT tube.
A lot of the old scope circuits used to run the
Interesting offer -- now the dilemma -- do I open the box and test the
tube, or leave it in the box untested, where it is perhaps worth more
to a collector?
I'm really interested in building a scope clock with the tube. Trying
to find a kit I like is the problem.
Any recommendations?
Terry
On
But, I did make a little tube checker, to at least, light them up, and do
rough deflection tests.
http://threeneurons.files.wordpress.com/2012/09/crt_tst01.jpg
That's cute - do you have a schematic for it? I'm guessing it's a variant of
your 34063-based nixie supply with a voltage
No, I have 2 5BP4s (white phosphor), and they are rather large animals. I
don't know what I'm going to do with mine either. On top of that I also
have 2 5UP1s.
But, I did make a little tube checker, to at least, light them up, and do
rough deflection tests.
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