Welcome
Username or Email:

Password:


Missing Code




[ ]
[ ]
Online
  • Guests: 39
  • Members: 0
  • Newest Member: omjtest
  • Most ever online: 396
    Guests: 396, Members: 0 on 12 Jan : 12:51
Members Birthdays:
One birthday today, congrats!
genious 7 (32)


Next birthdays
07/12 genious 7 (32)
07/13 Friday (55)
07/13 robismor (30)
Contact
If you need assistance, please send an email to forum at 4hv dot org. To ensure your email is not marked as spam, please include the phrase "4hv help" in the subject line. You can also find assistance via IRC, at irc.shadowworld.net, room #hvcomm.
Support 4hv.org!
Donate:
4hv.org is hosted on a dedicated server. Unfortunately, this server costs and we rely on the help of site members to keep 4hv.org running. Please consider donating. We will place your name on the thanks list and you'll be helping to keep 4hv.org alive and free for everyone. Members whose names appear in red bold have donated recently. Green bold denotes those who have recently donated to keep the server carbon neutral.


Special Thanks To:
  • Aaron Holmes
  • Aaron Wheeler
  • Adam Horden
  • Alan Scrimgeour
  • Andre
  • Andrew Haynes
  • Anonymous000
  • asabase
  • Austin Weil
  • barney
  • Barry
  • Bert Hickman
  • Bill Kukowski
  • Blitzorn
  • Brandon Paradelas
  • Bruce Bowling
  • BubeeMike
  • Byong Park
  • Cesiumsponge
  • Chris F.
  • Chris Hooper
  • Corey Worthington
  • Derek Woodroffe
  • Dalus
  • Dan Strother
  • Daniel Davis
  • Daniel Uhrenholt
  • datasheetarchive
  • Dave Billington
  • Dave Marshall
  • David F.
  • Dennis Rogers
  • drelectrix
  • Dr. John Gudenas
  • Dr. Spark
  • E.TexasTesla
  • eastvoltresearch
  • Eirik Taylor
  • Erik Dyakov
  • Erlend^SE
  • Finn Hammer
  • Firebug24k
  • GalliumMan
  • Gary Peterson
  • George Slade
  • GhostNull
  • Gordon Mcknight
  • Graham Armitage
  • Grant
  • GreySoul
  • Henry H
  • IamSmooth
  • In memory of Leo Powning
  • Jacob Cash
  • James Howells
  • James Pawson
  • Jeff Greenfield
  • Jeff Thomas
  • Jesse Frost
  • Jim Mitchell
  • jlr134
  • Joe Mastroianni
  • John Forcina
  • John Oberg
  • John Willcutt
  • Jon Newcomb
  • klugesmith
  • Leslie Wright
  • Lutz Hoffman
  • Mads Barnkob
  • Martin King
  • Mats Karlsson
  • Matt Gibson
  • Matthew Guidry
  • mbd
  • Michael D'Angelo
  • Mikkel
  • mileswaldron
  • mister_rf
  • Neil Foster
  • Nick de Smith
  • Nick Soroka
  • nicklenorp
  • Nik
  • Norman Stanley
  • Patrick Coleman
  • Paul Brodie
  • Paul Jordan
  • Paul Montgomery
  • Ped
  • Peter Krogen
  • Peter Terren
  • PhilGood
  • Richard Feldman
  • Robert Bush
  • Royce Bailey
  • Scott Fusare
  • Scott Newman
  • smiffy
  • Stella
  • Steven Busic
  • Steve Conner
  • Steve Jones
  • Steve Ward
  • Sulaiman
  • Thomas Coyle
  • Thomas A. Wallace
  • Thomas W
  • Timo
  • Torch
  • Ulf Jonsson
  • vasil
  • Vaxian
  • vladi mazzilli
  • wastehl
  • Weston
  • William Kim
  • William N.
  • William Stehl
  • Wesley Venis
The aforementioned have contributed financially to the continuing triumph of 4hv.org. They are deserving of my most heartfelt thanks.
Forums
4hv.org :: Forums :: General Chatting
« Previous topic | Next topic »   

Post Your Cool Pic Here!

Move Thread LAN_403
teslacoolguy
Tue Sept 09 2008, 04:12PM
teslacoolguy Registered Member #1107 Joined: Thu Nov 08 2007, 10:09PM
Location:
Posts: 792
It also looks like a small possible x ray tube among the "strange/cool tubes" right in the center of the photo with a black base and 4 pins coming from the bottom.
Back to top
Hazmatt_(The Underdog)
Tue Sept 09 2008, 07:34PM
Hazmatt_(The Underdog) Registered Member #135 Joined: Sat Feb 11 2006, 12:06AM
Location: Anywhere is fine
Posts: 1735
I really dig your power supply Linas, but it won't work if you crimp the wire with the insulation still on. With the supply I would probably try to find some 10AWG silver teflon wire for the primary too. It can carry a lot more power at HF and it won't melt like cat5 will.
Back to top
Myke
Tue Sept 09 2008, 11:39PM
Myke Registered Member #540 Joined: Mon Feb 19 2007, 07:49PM
Location: MIT
Posts: 969
Dr. Meh wrote ...

The 707B tube is a klystron. The little copper neck part of the bottle fits inside a resonant cavity, and the tube will amplify or oscillate at the frequency of the cavity. If you can get it working and detect the RF with a Schottky diode in another cavity, you'd get major geekpoints wink

Hmm, an idea for a new project...
Now to figure out how to do that... neutral

teslacoolguy wrote ...

It also looks like a small possible x ray tube among the "strange/cool tubes" right in the center of the photo with a black base and 4 pins coming from the bottom.

I don't see any that would look like an x-ray tube... Maybe you could circle it?

Anders M. wrote ...

Lots of nice tubes Myke.

The nixie looks like a 5870, nice tube. maybe you could make a single digit nixie clock.

The "Possibly photo multipliers" seem to be one photomultiplier and one vidicon.

There seem to be a lot of photo tubes among the "Strange/cool tubes"

There seems to be a HeNe laser among the gas filled tubes.


Anders M.

Thanks. Yeah, there is a HeNe laser and the photo tubes I picked up over the months from this one guy at the electronics swapmeet.
Back to top
Linas
Wed Sept 10 2008, 04:06AM
Linas Registered Member #1143 Joined: Sun Nov 25 2007, 04:55PM
Location: Vilnius, Lithuania
Posts: 721
Hazmatt_(The Underdog) wrote ...

I really dig your power supply Linas, but it won't work if you crimp the wire with the insulation still on. With the supply I would probably try to find some 10AWG silver teflon wire for the primary too. It can carry a lot more power at HF and it won't melt like cat5 will.
primary madded 60*0,2mm diametre wires, last time, i was using 25*0,2mm wires, and transformator can woirk on 3KW
i wory about secundary, it's 140*0,4mm diametre mad
Back to top
Mads Barnkob
Wed Sept 10 2008, 02:59PM
Mads Barnkob Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
My new tetrode tube, QB5/2000. Size comparison is a ice cold danish premium beer which I am now enjoying :)
1221058795 1403 FT6000 Img 0756
Back to top
Myke
Thu Sept 11 2008, 12:12AM
Myke Registered Member #540 Joined: Mon Feb 19 2007, 07:49PM
Location: MIT
Posts: 969
Cool tube.
Any plans for it?
Back to top
Fabio
Thu Sept 11 2008, 08:44AM
Fabio Registered Member #122 Joined: Fri Feb 10 2006, 12:55PM
Location: Milano Italy
Posts: 148
Cool tube.



HOT tube! amazed

DSC01717 1


DANGEROUS tube! suprised

Th


TRANSPARENT tube! cheesey

Th


S****T tube! cry

Th
Back to top
Mads Barnkob
Thu Sept 11 2008, 10:21AM
Mads Barnkob Registered Member #1403 Joined: Tue Mar 18 2008, 06:05PM
Location: Denmark, Odense C
Posts: 1968
Myke wrote ...

Cool tube.
Any plans for it?

A big VTTC :)
Back to top
Dr. Drone
Thu Sept 11 2008, 06:45PM
Dr. Drone Registered Member #290 Joined: Mon Mar 06 2006, 08:24PM
Location:
Posts: 1673
shades
Back to top
uzzors2k
Thu Sept 11 2008, 07:19PM
uzzors2k Registered Member #95 Joined: Thu Feb 09 2006, 04:57PM
Location: Norway
Posts: 1308
Myke wrote ...

I don't see any that would look like an x-ray tube... Maybe you could circle it?

I spy a 2X2-A in the 2nd random box, not an x-ray tube but an HV rectifer. You probably have lots of other large rectifers too, and those are good for flash x-ray experiments. Link2 Or even CW x-rays. Link2
Back to top

Moderator(s): Chris Russell, Noelle, Alex, Tesladownunder, Dave Marshall, Dave Billington, Bjørn, Steve Conner, Wolfram, Kizmo, Mads Barnkob

Go to:

Powered by e107 Forum System
 
Legal Information
This site is powered by e107, which is released under the GNU GPL License. All work on this site, except where otherwise noted, is licensed under a Creative Commons Attribution-ShareAlike 2.5 License. By submitting any information to this site, you agree that anything submitted will be so licensed. Please read our Disclaimer and Policies page for information on your rights and responsibilities regarding this site.