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Registered Member #3441
Joined: Thu Nov 25 2010, 07:59PM
Location:
Posts: 2
Hi guys,
sorry for not untroducing myself so much - I am not much of an HV-guy, but laser and stuff and I found some "part" that a friend of mine told me could be interesting for you guys...
I have no idea what to do with it and - to be honest - I was close to throwing it away.
So can anyone tell me what this thing (unused as far as I know) is worth and if anyone can use it? If you want it, please send me an eMail or PI.
It is a EEV CX1622 Deuterium Thyratron 35kV 5kA
Datasheet: See google
ABRIDGED DATA Deuterium-filled, flange mounted tetrode thyratron featuring high peak current, high rate of rise of current, low jitter and low anode delay time drift. It has been specifically designed to switch discharge circuits for pulsed lasers and for switching long pulses. It has an internally connected reservoir operated from the cathode heater supply and an internal shield to minimise X-ray emission from the region of the anode. Peak forward anode voltage . . . . . . 35 kVmax Peak forward anode current . . . . . . . 5.0 kAmax Average anode current . . . . . . . . 0.5 Amax Rate of rise of current . . . . . . . . 50 kA/ms max Pulse repetition rate . . . . . . . . 200 ppsmax GENERAL DATA Electrical Cathode (connected internally to mid-point of heater). . . . . . . . . oxide coated Heater voltage . . . . . . . . . . . 6.3+ 5% V Heater current . . . . . . . . . . 22 A Tube heating time (minimum) . . . . . . 5.0 min Mechanical Seated height . . . . . 304.8 mm (12.000 inches) max Clearance required below mounting flange . . . . . 44.45 mm (1.750 inches) min Overall diameter (excluding mounting flange) . . . 84.12 mm (3.312 inches) max Net weight . . . . . . . 0.7kg(11 /2 pounds) approx Mounting position (see note 1) . . . . . . . . . any Top cap connector (see note 2) . . . . . B.S.448-CT3 Cooling (see note 3) . . . . . . . . . . forced-air MAXIMUM AND MINIMUM RATINGS (Absolute values) Min Max Anode (Pulse Laser Service) Peak forward anode voltage (see note 4) . . . . . . . . . – 35 kV Peak inverse anode voltage (see note 5) . . . . . . . . . – 25 kV Peak forward anode current . . . . . – 5.0 kA Average anode current . . . . . . – 0.25 A Rate of rise of anode current (see notes 6 and 7) . . . . . . . – 50 kA/ms Pulse repetition rate . . . . . . . – 50 pps Min Max Anode (Pulse Modulator Service) Peak forward anode voltage (see note 4) . . . . . . . . . – 35 kV Peak inverse anode voltage (see note 5) . . . . . . . . . – 25 kV Peak forward anode current . . . . . – 5.0 kA Average anode current . . . . . . – 0.5 A Rate of rise of anode current (see notes 6 and 7) . . . . . . . – 5.0 kA/ms Pulse repetition rate . . . . . . . – 200 pps
As I said, make me an offer or tell me it is trash ;)
Registered Member #561
Joined: Sat Mar 03 2007, 02:46AM
Location: Adelaide Australia
Posts: 230
I'm pretty sure that these are used as triggers in nuclear weapons. High voltage, high pulse current and very low reaction times so you can set off the detonators with high precision
Registered Member #540
Joined: Mon Feb 19 2007, 07:49PM
Location: MIT
Posts: 969
It's a matter of following the rules really. The rules explicitly state "Do not register for the sole purpose of selling something". It is a good idea to keep the few rules we have well defined.
Registered Member #543
Joined: Tue Feb 20 2007, 04:26PM
Location: UK
Posts: 4992
Grenadier wrote ...
Nope, those are krytons that are used in nukes. I want one but they're impossible to get.
And proud mary lighten up a bit. Do you really think a scammer would come here peddling a thyratron?
What I think is not the issue. Everyone agrees to the rules when they register as a member. The rules are not arbitary, and this poster has also exceeded the allowable image size.
Registered Member #3411
Joined: Sat Nov 13 2010, 08:25PM
Location:
Posts: 33
Man thats one sexy tube you got there... And it definately looks like spanking new as well, no discoloration whatsoever.
Id be all over it, but then again, I dont like thyrathrons simply because you have to heat them up, 22Amps at 6.3v, jeez :D
As for krytrons, people say they can be found on fleemarkets in the usa.. one even claimed he got a box of em for like 50 cent a piece.... Never heard of anyone finding sprytrons tho :D. I dont get the whole "illegal to sell/buy/trade" thing, as it would seem a simple spark gap which anyone can build in like 10 mins allows switching of even higher energies (and is even faster?) Soz for offtopic, couldnt restrain myself
PS Feel free to delete this post if it contains stuff you dont want to be found on this forum
PS2. You post you are more interested in laser and you got no idea what this can be used for - high powered pulsed lasers might be a start :). It even says so in the datasheet :D
Registered Member #1403
Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
Digging a bit into this fishy sale some questions did come up...
The pictures are hosted at biomems.de that appears to be a medical company without anyhting on the site, the registrant is also the contact on several other domain names from where spam have been reported according to this blogger...
He writes to email him without leaving a email adress. He sells a very expensive item and talks about it as may be trash, though uses shiny framed pictures. As pointed out, the laser usage.
Make up your own mind... but something isn't right here....
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Deuterium Thyratron CX1622 EEV
I think I'll leave this as a judgment call to one of the other mods.
