Author Topic: Cockroft-walton resistors  (Read 463 times)

Offline dbach

  • High Voltage Enthusiast
  • *
  • Posts: 34
  • Karma: +0/-0
    • View Profile
Cockroft-walton resistors
« on: March 13, 2023, 05:59:40 PM »
Hello all,

I have some questions about a curious listing I found on ebay that appear to be perfect for my voltage multiplier. 

The only info is this photo

The seller lists them as 40w but gives no indication to their resistance or other specs, and messaging resulted in no response.

If anybody has ideas on the ratings of these resistors (if they even are resistors) let me know!

Thanks so much,
Davis

Offline alan sailer

  • High Voltage Engineer
  • ****
  • Posts: 234
  • Karma: +17/-0
    • View Profile
Re: Cockroft-walton resistors
« Reply #1 on: March 13, 2023, 08:25:38 PM »
A  few years back I saw a listing for a TV flyback transformer. I could not tell if it was AC or DC. I asked the
seller to measure the resistance. He did and I bought the flyback based on that information.

You might try the same thing.

Cheers.

Offline dbach

  • High Voltage Enthusiast
  • *
  • Posts: 34
  • Karma: +0/-0
    • View Profile
Re: Cockroft-walton resistors
« Reply #2 on: March 13, 2023, 10:41:49 PM »
Ive sent the seller a couple messages to no avail, they have yet to respond.

It doesn't fill me with confidence but I figure they will probably ship it if I buy (which I wont do without rating) and if they dont ebay will refund.


Offline MRMILSTAR

  • High Voltage Senior
  • *****
  • Posts: 516
  • Karma: +18/-0
  • Cedar Rapids, Iowa
    • View Profile
Re: Cockroft-walton resistors
« Reply #3 on: March 14, 2023, 04:04:32 AM »
I would guess that they are either resistors or fuses. Judging by the size of the end contacts I would guess fuses.
Steve White
Cedar Rapids, Iowa
Retired electrical engineer

High Voltage Forum

Re: Cockroft-walton resistors
« Reply #3 on: March 14, 2023, 04:04:32 AM »

 


* Recent Topics and Posts

post Re: Benjamin's DRSSTC3
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
Today at 06:32:03 AM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
FonziDaytona
November 27, 2023, 03:12:43 PM
post Benjamin's DRSSTC3
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Benjamin Lockhart
November 27, 2023, 09:07:43 AM
post Re: Feedback on new freewheeling driver schematic
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 27, 2023, 12:27:13 AM
post Re: Feedback on new freewheeling driver schematic
[Dual Resonant Solid State Tesla coils (DRSSTC)]
FilipŠebík
November 26, 2023, 11:18:29 PM
post First part of my bipolar Tesla coil project and future improvements
[Spark Gap Tesla Coils (SGTC)]
MechatEng2023
November 26, 2023, 10:07:55 PM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 26, 2023, 09:57:50 PM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
FonziDaytona
November 26, 2023, 08:04:56 PM
post Re: Choosing a Capacitor for a 30hz Marx generator
[Voltage Multipliers]
bobfrancis1980
November 26, 2023, 07:53:47 PM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
thedoc298
November 26, 2023, 05:14:20 AM
post Re: WTS/WTT: T520-2 - Micrometals core, MO, USA
[Sell / Buy / Trade]
davekni
November 25, 2023, 08:04:05 PM
post Re: Single Photon Dual Slit Demonstartion
[Detection, Counting and Measurements]
alan sailer
November 25, 2023, 07:16:02 PM
post Re: Next Gen DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
coilerer
November 25, 2023, 01:05:56 PM
post Re: WTS/WTT: T520-2 - Micrometals core, MO, USA
[Sell / Buy / Trade]
coilerer
November 25, 2023, 01:02:05 PM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 25, 2023, 04:29:13 AM
post Re: Choosing a Capacitor for a 30hz Marx generator
[Voltage Multipliers]
davekni
November 25, 2023, 04:15:02 AM
post Re: Help for people buying the "12-48 Volt 1800/2500 Watt ZVS induction Heater"
[Electronic Circuits]
klugesmith
November 24, 2023, 11:57:26 PM
post Re: Single Photon Dual Slit Demonstartion
[Detection, Counting and Measurements]
klugesmith
November 24, 2023, 11:26:58 PM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
FonziDaytona
November 24, 2023, 11:26:04 PM
post Re: Choosing a Capacitor for a 30hz Marx generator
[Voltage Multipliers]
bobfrancis1980
November 24, 2023, 10:08:43 PM
post ABB DCS400 - 900A / 522kW DC Motor Drive Teardown
[Electronic Circuits]
Mads Barnkob
November 24, 2023, 07:33:46 PM
post Re: Next Gen DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Netzpfuscher
November 24, 2023, 08:57:36 AM
post Re: Help for people buying the "12-48 Volt 1800/2500 Watt ZVS induction Heater"
[Electronic Circuits]
petespaco
November 24, 2023, 06:40:13 AM
post Re: Help for people buying the "12-48 Volt 1800/2500 Watt ZVS induction Heater"
[Electronic Circuits]
tarak
November 24, 2023, 04:04:48 AM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 23, 2023, 09:58:21 PM
post Re: My 9MHz hfsstc
[Solid State Tesla Coils (SSTC)]
cuteKaisa
November 23, 2023, 02:17:52 PM
post Re: My plasma ring
[Solid State Tesla Coils (SSTC)]
cuteKaisa
November 23, 2023, 11:11:59 AM
post Re: Try to build the 4MHz ClassE SSTC
[Solid State Tesla Coils (SSTC)]
NyaaX_X
November 23, 2023, 07:25:26 AM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hari33
November 23, 2023, 05:19:57 AM
post Re: Try to build the 4MHz ClassE SSTC
[Solid State Tesla Coils (SSTC)]
davekni
November 23, 2023, 05:18:41 AM
post Re: Choosing a Capacitor for a 30hz Marx generator
[Voltage Multipliers]
davekni
November 23, 2023, 05:06:51 AM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 23, 2023, 04:51:16 AM
post Re: WTS/WTT: T520-2 - Micrometals core, MO, USA
[Sell / Buy / Trade]
davekni
November 23, 2023, 04:31:56 AM
post Single Photon Dual Slit Demonstartion
[Detection, Counting and Measurements]
alan sailer
November 22, 2023, 09:15:36 PM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hari33
November 22, 2023, 08:36:14 AM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
November 22, 2023, 07:59:21 AM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hari33
November 22, 2023, 07:28:05 AM
post Choosing a Capacitor for a 30hz Marx generator
[Voltage Multipliers]
bobfrancis1980
November 22, 2023, 12:19:34 AM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hari33
November 21, 2023, 09:35:21 PM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hari33
November 21, 2023, 09:31:51 PM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
November 21, 2023, 07:34:43 PM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
FonziDaytona
November 21, 2023, 02:02:52 PM
post Re: WTS/WTT: T520-2 - Micrometals core, MO, USA
[Sell / Buy / Trade]
flyingperson23
November 21, 2023, 06:14:38 AM
post Re: WTS/WTT: T520-2 - Micrometals core, MO, USA
[Sell / Buy / Trade]
davekni
November 21, 2023, 04:54:39 AM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 21, 2023, 04:41:17 AM
post Re: WTS/WTT: T520-2 - Micrometals core, MO, USA
[Sell / Buy / Trade]
klugesmith
November 21, 2023, 04:18:24 AM
post Re: inject high current in high voltage electric arc
[Transformer (Iron Core)]
Twospoons
November 21, 2023, 04:05:54 AM
post Re: inject high current in high voltage electric arc
[Transformer (Iron Core)]
Quentief
November 21, 2023, 03:40:22 AM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
November 20, 2023, 09:18:25 PM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hari33
November 20, 2023, 07:30:40 PM
post Re: Try to build the 4MHz ClassE SSTC
[Solid State Tesla Coils (SSTC)]
NyaaX_X
November 20, 2023, 03:08:39 PM
post Re: WTS/WTT: T520-2 - Micrometals core, MO, USA
[Sell / Buy / Trade]
flyingperson23
November 20, 2023, 06:07:43 AM
post Re: WTS/WTT: T520-2 - Micrometals core, MO, USA
[Sell / Buy / Trade]
davekni
November 20, 2023, 03:36:36 AM
post Re: WTS/WTT: T520-2 - Micrometals core, MO, USA
[Sell / Buy / Trade]
flyingperson23
November 20, 2023, 12:54:58 AM
post Re: WTS/WTT: T520-2 - Micrometals core, MO, USA
[Sell / Buy / Trade]
Anders Mikkelsen
November 19, 2023, 11:34:16 PM
post Re: WTS/WTT: T520-2 - Micrometals core, MO, USA
[Sell / Buy / Trade]
klugesmith
November 19, 2023, 10:29:08 PM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 19, 2023, 10:00:16 PM
post Re: WTS/WTT: T520-2 - Micrometals core, MO, USA
[Sell / Buy / Trade]
davekni
November 19, 2023, 09:58:27 PM
post Neon & xenon
[Light, Lasers and Optics]
MechatEng2023
November 19, 2023, 09:19:44 PM
post Re: WTS/WTT: T520-2 - Micrometals core, MO, USA
[Sell / Buy / Trade]
klugesmith
November 19, 2023, 05:19:07 PM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
FonziDaytona
November 19, 2023, 05:32:49 AM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 19, 2023, 04:47:45 AM
post Re: WTS/WTT: T520-2 - Micrometals core, MO, USA
[Sell / Buy / Trade]
flyingperson23
November 19, 2023, 01:09:21 AM
post Re: SG3525A Plasma Speaker - Project
[Transformer (Ferrite Core)]
ZakW
November 19, 2023, 12:30:59 AM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
FonziDaytona
November 19, 2023, 12:01:31 AM
post Re: WTS/WTT: T520-2 - Micrometals core, MO, USA
[Sell / Buy / Trade]
flyingperson23
November 18, 2023, 10:38:04 PM
post Re: Next Gen DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hydron
November 18, 2023, 10:19:52 PM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 18, 2023, 07:39:36 PM
post Re: GU-81 vs. GU-81M
[Vacuum Tube Tesla Coils (VTTC)]
janno288
November 18, 2023, 07:14:48 PM
post Re: Strange frequency behavior
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Uspring
November 18, 2023, 07:10:02 PM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
FonziDaytona
November 18, 2023, 06:24:23 PM
post Re: GU-81 vs. GU-81M
[Vacuum Tube Tesla Coils (VTTC)]
Mads Barnkob
November 18, 2023, 09:26:37 AM
post Re: Strange frequency behavior
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
November 18, 2023, 09:21:56 AM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
November 18, 2023, 09:15:32 AM
post Re: Strange frequency behavior
[Dual Resonant Solid State Tesla coils (DRSSTC)]
flyingperson23
November 18, 2023, 07:36:20 AM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 18, 2023, 06:43:41 AM
post Re: Strange frequency behavior
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 18, 2023, 06:41:20 AM
post Re: Problem with output with fullbridge sstc
[Solid State Tesla Coils (SSTC)]
NyaaX_X
November 18, 2023, 02:31:18 AM
post Re: Strange frequency behavior
[Dual Resonant Solid State Tesla coils (DRSSTC)]
flyingperson23
November 18, 2023, 12:20:24 AM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
FonziDaytona
November 17, 2023, 11:40:01 PM
post Re: Strange frequency behavior
[Dual Resonant Solid State Tesla coils (DRSSTC)]
flyingperson23
November 17, 2023, 09:58:36 PM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 17, 2023, 09:49:11 PM
post Re: Strange frequency behavior
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 17, 2023, 09:45:23 PM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 17, 2023, 09:40:13 PM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
FonziDaytona
November 17, 2023, 08:49:25 PM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
AstRii
November 17, 2023, 08:19:20 PM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hari33
November 17, 2023, 08:09:01 PM
post Re: Strange frequency behavior
[Dual Resonant Solid State Tesla coils (DRSSTC)]
flyingperson23
November 17, 2023, 08:08:13 PM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hari33
November 17, 2023, 08:04:56 PM
post Re: Need Help with LTspice Circuit for Simulating a Spark Gap
[Electronic Circuits]
davekni
November 17, 2023, 07:34:33 PM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 17, 2023, 07:28:06 PM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Egg
November 17, 2023, 07:28:02 PM
post Re: Strange frequency behavior
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 17, 2023, 07:25:42 PM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 17, 2023, 07:23:36 PM
post Re: First drsstc issues
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hari33
November 17, 2023, 07:16:05 PM
post Re: DRSSTC low power testing killing IGBTs
[Dual Resonant Solid State Tesla coils (DRSSTC)]
FonziDaytona
November 17, 2023, 02:22:29 PM
post Re: Next Gen DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
coilerer
November 17, 2023, 01:40:08 PM
post Re: Strange frequency behavior
[Dual Resonant Solid State Tesla coils (DRSSTC)]
flyingperson23
November 17, 2023, 07:23:29 AM
post Re: Strange frequency behavior
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
November 17, 2023, 06:03:06 AM
post Re: Need Help with LTspice Circuit for Simulating a Spark Gap
[Electronic Circuits]
bobfrancis1980
November 17, 2023, 05:52:48 AM

Sitemap 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 
SimplePortal 2.3.6 © 2008-2014, SimplePortal