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CPUShack
Joined: 16 Jun 2003
Posts: 34258
Location: State of Jefferson, USA
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Bator
Joined: 28 Oct 2013
Posts: 1285
Location: Russia / Yakutia & Siberia
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 Posted: Wed May 20, 2015 2:42 pm Post subject: |
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Betatron РБК6-6Э RBK6-6E (X-ray camera betatron). The maximum achievable energy in the betatron: ≤ 6 MeV.
Last edited by Bator on Mon Oct 05, 2015 11:29 am; edited 2 times in total |
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aberco
Joined: 05 Sep 2013
Posts: 2655
Location: Paris France
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| Posted: Wed May 20, 2015 3:07 pm Post subject: |
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Here's my little home-designed and built nixie clock throning on my desk  |
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rjluna2
Joined: 27 Oct 2014
Posts: 1302
Location: Hiram, GA, USA
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| Posted: Wed May 20, 2015 4:35 pm Post subject: |
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| gekaufman wrote: | Mercury vapor rectifiers are cool looking, but a pain to use. They need to be pre-heated or they flash over (sometimes dramatically). If they are moved around they need to be pre-conditioned by heating the filament without B+ for an extended period of time. They also give off tons of RF hash.
I know, I built a 211 single ended triode amp with 866jr rectifiers a few years back. |
Nice |
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Guest
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| Posted: Wed May 20, 2015 8:18 pm Post subject: |
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| Hey I have one of these on my desk too! |
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UMMR
Joined: 23 Aug 2007
Posts: 381
Location: Udine, ITALY
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| Posted: Thu May 21, 2015 9:25 am Post subject: |
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It isn't a Ignitron, it's a three phase mercury arc rectifier. This kind of tube was the first industrially available and successful high-current "solid state" rectifier. Here in Europe it was a fundamental keystone in development of DC-powered railroad traction. The picture shows a relatively small rectifier: the large ones were constructed in full metal (capable of handling DC currents of **many** thousands Amperes). A piece of industrial history. |
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Vlasta
Joined: 15 May 2012
Posts: 2565
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fritsp2007
Joined: 23 May 2010
Posts: 856
Location: The Netherlands
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| Posted: Fri May 22, 2015 1:44 pm Post subject: |
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| This is a nice Nixie tube |
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alexander
Joined: 08 Aug 2007
Posts: 131
Location: Strasbourg France
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| Posted: Sat May 23, 2015 3:52 am Post subject: |
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| Push Pull Audio with a pair of RCA829b VHF Tetrodes |
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isa-d
Joined: 16 Aug 2006
Posts: 2984
Location: Italy
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| Posted: Sat May 23, 2015 6:01 am Post subject: |
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Many many years ago I built a wood PC with integrated an audio tube amplifer for the speakers
many dust on it now!! |
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debs3759
Joined: 18 Jan 2006
Posts: 9477
Location: Northampton, Divided Kingdom
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| Posted: Sat May 23, 2015 7:12 am Post subject: |
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My favourite tube type is the one I am smoking right now
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Debs |
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fritsp2007
Joined: 23 May 2010
Posts: 856
Location: The Netherlands
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| Posted: Fri May 29, 2015 3:40 am Post subject: |
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| The biggest I have is a GMI-90 and the smallest one is a Nuvistor 930 RCA |
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Vlasta
Joined: 15 May 2012
Posts: 2565
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| Posted: Fri May 29, 2015 9:46 am Post subject: |
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| fritsp2007 wrote: | | The biggest I have is a GMI-90 and the smallest one is a Nuvistor 930 RCA |
give some idea of size?
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Steve |
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gekaufman
Joined: 08 Dec 2014
Posts: 385
Location: New Hampshire, USA
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fritsp2007
Joined: 23 May 2010
Posts: 856
Location: The Netherlands
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| Posted: Sat May 30, 2015 1:04 pm Post subject: |
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| A nice photo multiplier EMI 9638B |
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