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fritsp2007
Joined: 23 May 2010
Posts: 856
Location: The Netherlands
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 Posted: Thu Aug 13, 2015 4:20 am Post subject: |
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| New addition the RV12 |
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yk
Joined: 17 Oct 2011
Posts: 539
Location: CN
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| Posted: Mon Oct 05, 2015 7:59 am Post subject: |
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wo, I have a big one ,too.
| fritsp2007 wrote: | | The biggest I have is a GMI-90 and the smallest one is a Nuvistor 930 RCA |
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berni
Joined: 17 May 2011
Posts: 59
Location: Germany
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| Posted: Mon Oct 05, 2015 9:46 am Post subject: |
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The full name is RV12P2000, a universal pentode developed during WW2.
It was still in production until 1948 in Germany. In the former GDR this type was used and produced until the 60's!
Nice find!
Bernhard |
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stamasd
Joined: 05 Jun 2014
Posts: 1311
Location: Connecticut
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| Posted: Mon Oct 19, 2015 9:01 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 |
There never was a nuvistor model "930", and the datasheet you linked to is that of a IR photodetector. Based on the picture I'd say that your nuvistor is in fact a RCA 7586 (it's stamped on top, as in most nuvistors) which is a triode. I have a few of them, along with other types of nuvistors.
http://www.r-type.org/pdfs/7586.pdf |
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fritsp2007
Joined: 23 May 2010
Posts: 856
Location: The Netherlands
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| Posted: Tue Oct 20, 2015 12:40 pm Post subject: |
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| Thanks for the adequate information. |
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fritsp2007
Joined: 23 May 2010
Posts: 856
Location: The Netherlands
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| Posted: Wed Oct 21, 2015 12:56 pm Post subject: |
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| Another beautiful tube |
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rjluna2
Joined: 27 Oct 2014
Posts: 1302
Location: Hiram, GA, USA
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| Posted: Wed Oct 21, 2015 5:45 pm Post subject: |
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The bottom tube might be spark gap/surge arrestor  |
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fritsp2007
Joined: 23 May 2010
Posts: 856
Location: The Netherlands
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| Posted: Fri Apr 29, 2016 5:17 am Post subject: |
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| The past month working on a Nixie clock, and it works and now a nice box to put it in. |
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fritsp2007
Joined: 23 May 2010
Posts: 856
Location: The Netherlands
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| Posted: Sat Dec 24, 2016 6:42 am Post subject: |
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| New addition a Philips EL6435 Tube amp. |
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dps
Joined: 01 Jun 2009
Posts: 2717
Location: Saint-Petersburg, Russia
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| Posted: Fri Nov 02, 2018 4:33 am Post subject: |
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stamasd
Joined: 05 Jun 2014
Posts: 1311
Location: Connecticut
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| Posted: Fri Jul 19, 2019 9:03 pm Post subject: |
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My favorite tube type which I am actively using and building new instruments with, is the photomultiplier. They are still being made new because despite advances in semiconductors there still isn't anything that can really replace them. Not even the SiPM (silicon photomultipliers) can do everything a real vacuum PMT can.
I build scintillation detectors with them for detection of gamma radiation.
My second favorite tube type is the thyratron. Want a few thousand amps at a few kV switched in a few nanoseconds? Try to do that with silly-con and watch it lose its magic smoke.  |
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