Yes, using transistors will do just fine. And you can use the nixie group's
favorite, the very common MPSA42, which can withstand 300V. Here are some
of my dekatron circuits:
http://threeneurons.wordpress.com/dekatron-stuff/
You can use a lot of trigger tubes for dekatron coupling, the problem being
to bias the trigger electrode correctly - a thing that is much more easy
with the GTE175M.
There are old East German magazines showing how to use the Z70U and the
Z5823 and similar types. The problem is that they
And GDT125T or GTD125M ? As far as I know they are also developed to manage
dekatrons. Unfortunately the GDTx' are not very speedy...
eric
_
From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On
Behalf Of threeneurons
Sent: donderdag 31 januari 2013 4:01
To:
Problem with thermionic tubes are the vulnerability to a kind of cathode
poisoning due to lack of current in 'zero time' and the high power
consumption.
Best should be 'computer grade tubes' like E90CC and E92CC They have
specially coated cathodes
eric
_
From:
I have a brochure from a British valve maker saying that once they solved the
interface resistance problem for computer valves they used the same cathodes
in all the valves.
That seems unlikely for a large valve maker, but maybe this was a smaller
outfit. The truth is that large valve
On 1/31/13 8:30 AM, John Rehwinkel wrote:
The drawback
is that adding silicon was what caused the sleeping sickness in tubes held in
cutoff
for long periods, so the computer grade tubes cost more to make, as they were
made
without the silicon. However, money could be saved by using old
John, thank you for explaining this! I've been looking for a good
explanation for quite some time, I've not put much effort into searching
but I've been curious what was the difference.
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You received this message because you are subscribed to the Google Groups
neonixie-l group.
To
It should not be hard at all to make small ceramic washers. I would use a
slip casting method. I would start with a plaster of paris sheet poured
into a rectangular wood box. The top edges of the wood sides of the box
allow you to scrape the poured plaster of paris sheet to have a flat top
On 13-01-31 09:53 PM, lai...@wcoil.com wrote:
A simple table top kiln would be used to fire
the porcelain. You could build one for well under $100 worth of parts.
Tim Laing
BFA in
I thought I would let people know that I am listing some Nixies on E-bay
NL841s and NL5440As Look at auction 281056256986. Then look at my other
listings. I will probably sell some more than the ones I have listed now.
Tim Laing
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You
On Tuesday, December 11, 2012 10:40:13 AM UTC-8, bryan wrote:
Yeah, I found out that they are still in production for $250 per one
item. Yes, you are right, they are ridiculously expensive. I have old 4
KW-105S. ($10 each from eBay)
Astonishing. Do you have any idea why on earth
I thought I would let people know that I am listing some Nixies on E-bay
NL841s and NL5440As Look at auction 281056256986. Then look at my other
listings. I will probably sell some more than the ones I have listed now.
Does the cat come with?
- John
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You received this message because
When the subject came up on TCA a few years back I pointed to the published
statement... it was generally agreed there that all companies used improved
cathodes. I don't remember whether anyone came up with a black and white
statement like the one I had.
I'll ask again.
A quick look at Kohl
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