Author Topic: Help me understand a scheme  (Read 1601 times)

Offline alfedorov

  • High Voltage Enthusiast
  • *
  • Posts: 3
  • Karma: +0/-0
    • View Profile
Help me understand a scheme
« on: December 21, 2017, 01:17:04 PM »
Hi everybodyes!

I inherited the device. This is an iron box. Inside there is a vacuum tube, a choke, a coil, a capacitor, high-voltage power.

At the top of the box there is a copper needle, it is isolated from the box by a fluoroplastic plate. When the device is turned on, the copper needle lights up.

I drew a rough outline.

On the box there are two handles. One changes the resistance, the other changes capacitors.

I put the dipstick on the box from the oscilloscope and looked at the signal.
Packs of high-frequency pulses with a frequency of 25 MHz are coming.
The bursts of pulses are interrupted at a frequency of several kHz. The interruption time is regulated by two handles on the box.

The discharge shape is regulated by handles and depends on the frequency of the interruption time.

Can you please tell me how this scheme works?








« Last Edit: December 21, 2017, 01:23:33 PM by alfedorov »

Offline Mads Barnkob

  • Administrator
  • High Voltage Expert
  • *****
  • Posts: 1397
  • Karma: +23/-0
  • Denmark
    • View Profile
    • Kaizer Power Electronics
Re: Help me understand a scheme
« Reply #1 on: December 22, 2017, 08:51:27 AM »
There is no doubt that you have a tube oscillator, but there is one thing that makes me wonder.

The grid leak circuit, the two adjustable knobs for capacitance and resistance, they will adjust how many electrons are allowed to pass from cathode to anode, so negative charges on the grid will block the electrons, but as it is connected to the enclosure, this is either floating, grounded or picking up some induced charges from the discharge into the enclosure...

I only built the class C Armstrong oscillator that has a dedicated feedback circuit to drive it. http://kaizerpowerelectronics.dk/tesla-coils/kaizer-vttc-i/
« Last Edit: December 22, 2017, 11:13:41 AM by Mads Barnkob »
http://www.kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power, audio and general electronics

Offline alfedorov

  • High Voltage Enthusiast
  • *
  • Posts: 3
  • Karma: +0/-0
    • View Profile
Re: Help me understand a scheme
« Reply #2 on: December 22, 2017, 11:02:26 AM »
I learned that this scheme is called a "super-regenerator". The coil to which it is connected is a "basefeed"  https://highvoltageforum.net/index.php?topic=177.0

But more my knowledge is not enough.

PS. But positive charges on the grid do not block the electrons, but rather facilitate their passage.
« Last Edit: December 22, 2017, 11:12:35 AM by alfedorov »

Offline Mads Barnkob

  • Administrator
  • High Voltage Expert
  • *****
  • Posts: 1397
  • Karma: +23/-0
  • Denmark
    • View Profile
    • Kaizer Power Electronics
Re: Help me understand a scheme
« Reply #3 on: December 22, 2017, 11:15:19 AM »
Oops what a blunder :o It is true, electrons are blocked with a negative charge on the grid.

I still think that it uses the enclosure as feedback antenna for driving the grid at the basefed circuit resonance.

http://www.kaizerpowerelectronics.dk - Tesla coils, high voltage, pulse power, audio and general electronics

Offline AndreiRS

  • High Voltage Experimenter
  • **
  • Posts: 73
  • Karma: +0/-0
    • View Profile
Re: Help me understand a scheme
« Reply #4 on: February 20, 2018, 04:07:25 PM »
I just don't know, but for some reason I thought about microwave ovens which have on side of the HV transformer connected to it. Maybe that helps your theory in some way.

High Voltage Forum

Re: Help me understand a scheme
« Reply #4 on: February 20, 2018, 04:07:25 PM »

 


* Recent Topics and Posts

post Re: Russian voltage multiplicator stacking
[Voltage Multipliers]
davekni
Today at 03:54:03 AM
post Re: Building a bigger DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
Today at 03:48:54 AM
post Re: Building a bigger DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
ritaismyconscience
Today at 01:03:12 AM
post Russian voltage multiplicator stacking
[Voltage Multipliers]
nix85
May 30, 2020, 11:50:10 PM
post Re: Site Info desperately needed: http://www.stevehv.4hv.org/
[General Chat]
Weston
May 30, 2020, 11:37:54 PM
post Re: Portable Q(uarantine)CW Tesla Coil
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Weston
May 30, 2020, 11:32:37 PM
post Servomex CO2 analyser
[Electronic Circuits]
Mads Barnkob
May 30, 2020, 11:06:18 PM
post Re: Site Info desperately needed: http://www.stevehv.4hv.org/
[General Chat]
Bradselph
May 30, 2020, 10:14:21 PM
post Re: Site Info desperately needed: http://www.stevehv.4hv.org/
[General Chat]
Weston
May 30, 2020, 08:33:05 PM
post Re: Site Info desperately needed: http://www.stevehv.4hv.org/
[General Chat]
Bradselph
May 30, 2020, 07:08:49 PM
post Re: Site Info desperately needed: http://www.stevehv.4hv.org/
[General Chat]
Mads Barnkob
May 30, 2020, 05:26:49 PM
post Re: Portable Q(uarantine)CW Tesla Coil
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Uspring
May 30, 2020, 05:25:45 PM
post Re: Site Info desperately needed: http://www.stevehv.4hv.org/
[General Chat]
MRMILSTAR
May 30, 2020, 04:31:14 PM
post Site Info desperately needed: http://www.stevehv.4hv.org/
[General Chat]
HighVoltageRulezz
May 30, 2020, 02:05:07 PM
post Re: CT performance investigations (Pearson and DIY)
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hydron
May 30, 2020, 09:46:46 AM
post Re: CT performance investigations (Pearson and DIY)
[Dual Resonant Solid State Tesla coils (DRSSTC)]
klugesmith
May 30, 2020, 08:34:58 AM
post Re: CT performance investigations (Pearson and DIY)
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hydron
May 29, 2020, 11:22:22 PM
post Re: SSTC Micro
[Solid State Tesla Coils (SSTC)]
davekni
May 29, 2020, 08:53:35 PM
post Re: CT performance investigations (Pearson and DIY)
[Dual Resonant Solid State Tesla coils (DRSSTC)]
klugesmith
May 29, 2020, 08:25:06 PM
post Re: CT performance investigations (Pearson and DIY)
[Dual Resonant Solid State Tesla coils (DRSSTC)]
sgtraf
May 29, 2020, 05:42:45 PM
post Re: SSTC Micro
[Solid State Tesla Coils (SSTC)]
Magneticitist
May 29, 2020, 04:13:50 PM
post Re: Portable Q(uarantine)CW Tesla Coil
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Weston
May 29, 2020, 10:50:36 AM
post Re: SSTC Micro
[Solid State Tesla Coils (SSTC)]
jockoFergy
May 29, 2020, 08:46:27 AM
post Re: New projet OmegaDR
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
May 29, 2020, 12:00:26 AM
post Re: New projet OmegaDR
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mugi30
May 28, 2020, 11:40:37 PM
post Re: New projet OmegaDR
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
May 28, 2020, 11:29:00 PM
post Re: Help for people buying the "12-48 Volt 1800/2500 Watt ZVS induction Heater"
[Electronic Circuits]
petespaco
May 28, 2020, 10:33:50 PM
post Re: New projet OmegaDR
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mugi30
May 28, 2020, 10:07:59 PM
post Re: SSTC Micro
[Solid State Tesla Coils (SSTC)]
Magneticitist
May 28, 2020, 09:39:53 PM
post Re: 4kJ wire explosions from 2500uF/2kV Maxwell Energy Discharge Capacitor
[Capacitor Banks]
haversin
May 28, 2020, 03:55:56 PM
post 4kJ wire explosions from 2500uF/2kV Maxwell Energy Discharge Capacitor
[Capacitor Banks]
Mads Barnkob
May 28, 2020, 10:25:50 AM
post Re: SSTC Micro
[Solid State Tesla Coils (SSTC)]
davekni
May 28, 2020, 04:59:02 AM
post Re: MMC for a 32kvac load
[Capacitor Banks]
davekni
May 28, 2020, 04:32:26 AM
post Re: SSTC Micro
[Solid State Tesla Coils (SSTC)]
Rowdy
May 28, 2020, 04:12:23 AM
post Re: MMC for a 32kvac load
[Capacitor Banks]
Rowdy
May 28, 2020, 03:41:17 AM
post Re: MMC for a 32kvac load
[Capacitor Banks]
Rowdy
May 28, 2020, 03:40:25 AM
post Re: SSTC Micro
[Solid State Tesla Coils (SSTC)]
jockoFergy
May 28, 2020, 02:42:23 AM
post Re: Portable Q(uarantine)CW Tesla Coil
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Uspring
May 27, 2020, 06:21:39 PM
post Re: Improving IGBT gate drive
[Dual Resonant Solid State Tesla coils (DRSSTC)]
fnordest
May 27, 2020, 12:11:06 PM
post Re: Building a bigger DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Max
May 27, 2020, 11:51:19 AM
post Re: MMC for a 32kvac load
[Capacitor Banks]
davekni
May 26, 2020, 07:55:03 PM
post Re: Building a bigger DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
May 26, 2020, 07:40:48 PM
post Re: Working Principle Of Neon Transformer Circuit
[Transformer (Ferrite Core)]
iraquois
May 26, 2020, 05:12:42 PM
post Re: Building a bigger DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Max
May 26, 2020, 03:57:04 PM
post Re: XRay Tank- any ideas about what is inside
[Transformer (Ferrite Core)]
Mads Barnkob
May 26, 2020, 01:52:26 PM
post Re: Blew my first MOSFET, but it seems like it shouldn't have blown the way it did
[Solid State Tesla Coils (SSTC)]
T3sl4co1l
May 26, 2020, 11:52:33 AM
post Re: XRay Tank- any ideas about what is inside
[Transformer (Ferrite Core)]
HighVoltageRulezz
May 26, 2020, 09:40:52 AM
post Re: Blew my first MOSFET, but it seems like it shouldn't have blown the way it did
[Solid State Tesla Coils (SSTC)]
Magneticitist
May 26, 2020, 08:56:01 AM
post Re: MMC for a 32kvac load
[Capacitor Banks]
Mads Barnkob
May 26, 2020, 08:45:40 AM
post Re: Building a bigger DRSSTC
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
May 26, 2020, 08:27:58 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