Author Topic: One NOS ac flyback is nice. Finding its identical twin 3 months later is awesome  (Read 171 times)

Offline extremeodd

  • High Voltage Enthusiast
  • *
  • Posts: 2
  • Karma: +0/-0
    • View Profile
So a few months back I stumbled across an eBay seller offloading a ton of various new in the box vintage AC flyback Transformers. I spent a few hours looking at every single one he had and I bought the largest looking one, a Thordarson fly-173. The diagram sheet indicates it is 15kv.

After repairing the ancient failing insulation with several layers of corona dope, it worked like a champ and has been an excellent hv ac source. When I looked the seller up to grab some more random vintage NOS flybacks his store was completely cleared out. It was a sad moment but I got over it and pushed it all to the back of my mind.

Then just a few days ago when looking at a listing for a cheap dst flyback I noticed some familiar looking thumbnails in the "who also viewed" section. So I gave one a click and I didn't immediately believe what I was seeing. It looked like the one I got months earlier, so I looked at my order history to double check and sure enough not only was the listing for the same
model flyback, it was straight up the exact same listing I had purchased from previously, pictures and all.

At this point, I started feeling like it maybe some sort of scam, especially since he reused the previous listings everything including images. That last bit had me somewhat nervous since I was essentially buying it completely site unseen. But as they say, the greater the risk, the greater the reward so I rolled the dice.

Oh boy was it ever worth it. Despite being the same model, same approx age, this flyback looks like it's 20 years newer. To the point that I am almost hesitant about Corona doping the snot out of it and playing around with parallel and series ac flybacks. Part of me is screaming to just carefully clean it up and place it in a display case with its box and diagram but the nerd in me is dying to pair them up and start experimenting.

Either way, I'm freaking stoked. These old flybacks are works of art and this one is no exception. That and the odds have to be astronomical to manage to randomly get 2 of the same model vintage ANYTHING brand new NOS, espcially with electrical componenets. Cant wait to see how she'll look with the insulation cleaned up and everything coated in corona dope.
« Last Edit: September 25, 2020, 04:04:36 AM by extremeodd »

Offline profdc9

  • High Voltage Engineer
  • ****
  • Posts: 248
  • Karma: +12/-0
    • View Profile
I have two similar flybacks like that.  Be careful!  They arc between windings quite readily.  I patched mine up with some epoxy, but be warned.   I think the insulation strength decreases over time.

High Voltage Forum


 


* Recent Topics and Posts

post IGBT brick internal gate resistor power dissipation
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
Today at 05:33:01 AM
post Re: steam engine
[Capacitor Banks]
Twospoons
Today at 04:39:41 AM
post Re: Fake or Real DC to DC Solid State Relays.
[Electronic Circuits]
davekni
Today at 03:02:12 AM
post Re: steam engine
[Capacitor Banks]
plasma
Today at 01:48:58 AM
post Re: Popped two IRFP460s while testing at 325V
[Solid State Tesla Coils (SSTC)]
davekni
Today at 01:03:25 AM
post Re: steam engine
[Capacitor Banks]
davekni
Today at 12:51:33 AM
post Fake or Real DC to DC Solid State Relays.
[Electronic Circuits]
petespaco
Today at 12:35:41 AM
post Re: DIY capacitor
[Capacitor Banks]
Alberto
October 25, 2020, 11:46:31 PM
post Popped two IRFP460s while testing at 325V
[Solid State Tesla Coils (SSTC)]
Zipdox
October 25, 2020, 11:25:26 PM
post 833A Maximum Dissipation Ratings
[Vacuum Tube Tesla Coils (VTTC)]
kyledellaquila
October 25, 2020, 11:16:17 PM
post SuperCascode Designs
[Solid State Tesla Coils (SSTC)]
kyledellaquila
October 25, 2020, 10:36:58 PM
post Re: DIY capacitor
[Capacitor Banks]
plasma
October 25, 2020, 09:59:37 PM
post Re: steam engine
[Capacitor Banks]
plasma
October 25, 2020, 09:50:03 PM
post Lecroy Waverunner 6000a - is it worth for hobby use?
[Laboratories, Equipment and Tools]
flyglas
October 25, 2020, 07:29:38 PM
post Re: DIY current transformer for measuring primary current?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
davekni
October 25, 2020, 06:19:51 PM
post Re: DIY capacitor
[Capacitor Banks]
Alberto
October 25, 2020, 03:09:42 PM
post Re: DIY current transformer for measuring primary current?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Daniel Uhrenholt
October 25, 2020, 09:41:48 AM
post Re: DIY current transformer for measuring primary current?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
plasma
October 25, 2020, 01:46:20 AM
post Re: DIY current transformer for measuring primary current?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hydron
October 24, 2020, 11:12:37 PM
post Re: CM600DU-24NF availability or substitute?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Daniel Uhrenholt
October 24, 2020, 11:07:33 PM
post Re: Welcome new members, come say hello and tell a little about yourself :)
[General Chat]
Daniel Uhrenholt
October 24, 2020, 10:45:41 PM
post Re: DIY current transformer for measuring primary current?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Daniel Uhrenholt
October 24, 2020, 10:12:37 PM
post Re: DIY current transformer for measuring primary current?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Mads Barnkob
October 24, 2020, 09:29:06 PM
post Re: Welcome new members, come say hello and tell a little about yourself :)
[General Chat]
Mads Barnkob
October 24, 2020, 09:20:37 PM
post Re: DIY current transformer for measuring primary current?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hydron
October 24, 2020, 09:07:24 PM
post Re: Software for playing MIDIs
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Zipdox
October 24, 2020, 07:29:57 PM
post Re: Polyphonic Interrupter with STM32F103C8T6 (Bluepill)
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Zipdox
October 24, 2020, 07:02:13 PM
post Re: DIY current transformer for measuring primary current?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Daniel Uhrenholt
October 24, 2020, 06:38:42 PM
post Re: DIY current transformer for measuring primary current?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hydron
October 24, 2020, 05:42:49 PM
post Software for playing MIDIs
[Computers, Microcontrollers, Programmable Logic, Interfaces and Displays]
Max
October 24, 2020, 04:37:26 PM
post Re: DIY current transformer for measuring primary current?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Daniel Uhrenholt
October 24, 2020, 03:51:52 PM
post Re: DIY current transformer for measuring primary current?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hydron
October 24, 2020, 02:25:00 PM
post Re: Welcome new members, come say hello and tell a little about yourself :)
[General Chat]
Daniel Uhrenholt
October 24, 2020, 12:12:41 PM
post MOVED: DIY current transformer for scoping primary current?
[Solid State Tesla Coils (SSTC)]
Kizmo
October 24, 2020, 11:45:58 AM
post DIY current transformer for measuring primary current?
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Daniel Uhrenholt
October 24, 2020, 11:22:24 AM
post Re: Ping pong (and pumpkin?) cannons - split from ferrite-core QCW topic
[Science, Research and News In Other Fields Than Electronics]
davekni
October 24, 2020, 04:16:06 AM
post Re: Ping pong (and pumpkin?) cannons - split from ferrite-core QCW topic
[Science, Research and News In Other Fields Than Electronics]
davekni
October 24, 2020, 04:07:24 AM
post Re: Ping pong (and pumpkin?) cannons - split from ferrite-core QCW topic
[Science, Research and News In Other Fields Than Electronics]
Twospoons
October 23, 2020, 11:39:35 PM
post Re: Ping pong (and pumpkin?) cannons - split from ferrite-core QCW topic
[Science, Research and News In Other Fields Than Electronics]
Hydron
October 23, 2020, 07:10:22 PM
post Re: QCW with replaceable ferrite-core primary
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hydron
October 23, 2020, 05:36:02 PM
post Re: Ping pong (and pumpkin?) cannons - split from ferrite-core QCW topic
[Science, Research and News In Other Fields Than Electronics]
klugesmith
October 23, 2020, 05:34:39 PM
post MOVED: Ping pong (and pumpkin?) cannons - split from ferrite-core QCW topic
[Dual Resonant Solid State Tesla coils (DRSSTC)]
Hydron
October 23, 2020, 05:27:45 PM
post Re: QCW with replaceable ferrite-core primary
[Science, Research and News In Other Fields Than Electronics]
Uspring
October 23, 2020, 03:03:28 PM
post Re: RC snubbers
[Solid State Tesla Coils (SSTC)]
davekni
October 23, 2020, 12:27:42 AM
post Re: RC snubbers
[Solid State Tesla Coils (SSTC)]
AstRii
October 22, 2020, 10:06:59 PM
post Re: RC snubbers
[Solid State Tesla Coils (SSTC)]
Mads Barnkob
October 22, 2020, 09:05:22 PM
post Re: RC snubbers
[Solid State Tesla Coils (SSTC)]
davekni
October 22, 2020, 07:17:16 PM
post Re: QCW with replaceable ferrite-core primary
[Science, Research and News In Other Fields Than Electronics]
klugesmith
October 22, 2020, 05:33:39 PM
post Re: RC snubbers
[Solid State Tesla Coils (SSTC)]
T3sl4co1l
October 22, 2020, 02:07:27 PM
post RC snubbers
[Solid State Tesla Coils (SSTC)]
AstRii
October 22, 2020, 11:42:26 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