The Russians regularely used thyratrons, both cold cathode types and those
with a heater to drive Dekatrons. What types do you have?
/Martin
On Wednesday, 2 October 2013 07:29:49 UTC+2, Smiffy wrote:
Has anyone done/seen Dekatrons used in conjunction with thyratrons?
I just happen to have
On Wednesday, October 2, 2013 4:01:58 PM UTC+9:30, Dekatron42 wrote:
The Russians regularely used thyratrons, both cold cathode types and those
with a heater to drive Dekatrons. What types do you have?
Cold cathode. These: http://www.ebay.com/itm/250991574870
There are two in the Geiger
Thanks for info Nick, that is really pretty bad.. The RoHS directive
says that mercury in a product must be in a ration of less than a 0.1%
by weight (that is OK), and it cant be intentionally added - this is
the problem. But I found some information from 2011 that neon signs
are not limited by
This is written in the directive:
-
Applications of lead, mercury, cadmium and hexavalent chromium, which
are exempted from the requirements
of Article 4(1)
1. Mercury in compact fluorescent lamps not exceeding 5 mg per lamp.
2. Mercury in straight fluorescent lamps for general
The halogen cycle for Iodine is, I suspect, at too high a temperature for
nixies, which is why I was wondering if chlorine would do. Iodine works in
car headlamps etc. as the filament there runs at 1000C or so...
Hence my question about inorganic/physical chemists - its their territory,
not
That is exactly what I said. The quartz glass is needed, because of the high
temperature as well as the small bulb is needed to reach that temperature
eric
_
From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On
Behalf Of Nick
Sent: woensdag 2 oktober 2013 10:39
To:
Several people have archives of the old Yahoo! message group prior to our
migration here.
I was full of good intentions about trying to get those inserted here so
that this site is a complete record of the group since inception, but I
have just not got round to it.
Anyone here who understands
On Wednesday, October 2, 2013 5:52:27 PM UTC+9:30, Tidak Ada wrote:
They are useful, but consider the MTBF is 5000 h !
I wonder how that equates to actual firings, because I'd guess that it's
energised time that counts.
M
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You received this message because you are subscribed to the
I don't know, but I have the figure from a datasheet.
eric
_
From: neonixie-l@googlegroups.com [mailto:neonixie-l@googlegroups.com] On
Behalf Of Matthew Smith
Sent: woensdag 2 oktober 2013 13:43
To: neonixie-l@googlegroups.com
Subject: Re: [neonixie-l] Re: Dekatrons with thyratrons
Hi Nick,
I am doing some experimental work on the subject of lifespan due to
sputtering.
Could you provide the full reference, including if possible a chapter or
page number, for Weston's 50% threshold please? You mentioned it in your
first post.
Thanks in advance.
Regards,
Alex
On
On Wednesday, 2 October 2013 14:29:24 UTC+1, AlexTsekenis wrote:
Hi Nick,
I am doing some experimental work on the subject of lifespan due to
sputtering.
Could you provide the full reference, including if possible a chapter or
page number, for Weston's 50% threshold please? You mentioned
Hi Alex,
I hope You will share results of your experiments! ;-)
Thanks,
Dalibor
2013/10/2 AlexTsekenis alextseke...@gmail.com:
Hi Nick,
I am doing some experimental work on the subject of lifespan due to
sputtering.
Could you provide the full reference, including if possible a chapter or
Nick, thank you for the swift reply.
I've scanned in p340, here http://s23.postimg.org/t1sp4km0b/page196.jpg.
The book is the exact one in the reference.
On this page Weston explains the impact of digit cycling on lifespan. The
point of a gradual rather than abrupt end of life is also made.
Depends if you just want to use one to step a dekatron, or need it between
dekatrons, so the second one steps, per every revolution of the prior one.
The interstage one could be a problem. That one would need to respond to
the output of one dekatron, and then boost it to step the second. The
On Wednesday, September 25, 2013 12:50:52 PM UTC-7, Dekatron42 wrote:
Does it say DC-106A on your module?
Yes, it does. Though they mangled the D, by double stamping it.
I found the datasheet on the Ericsson VS10G trochotron, and it has a
circuit example that looks curiously similar to the
White-labelling across the whole valve/tube market was rife in all areas,
not just display tubes - there are some manufacturers in the audio world
who have never made anything themselves (maybe cardboard boxes). e.g.
Edicron.
Nick
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From what I read about the Halogen cycle, high-temperature is a key part
of the cycle where tungsten dissociates from the halogen, in this case on
the filament. Apparently the halogen present in the bulb reacts with the
tungsten that essentially condenses on the inner surface of the bulb,
If you ever get some time left it would be very kind if you could take some
nice photos of the PCB of your DC-106A module, but you'll have to unscrew
at least 8 screws to be able to remove the PCB from the unit, four for the
BD301 and four for the PCB. I'm interrested in seeing if your module
I am working on the Submillimeter Telescope today, fixing a fine old
German instrument.
I found a parts cabinet with TTL part numbers on all the drawers.
Here's the 7441 Nixie driver drawer:
http://www.nixiebunny.com/7441drawer.jpg
--
David Forbes, Tucson AZ
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