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.
Registered Member #242
Joined: Thu Feb 23 2006, 11:37PM
Location: Erie PA
Posts: 210
I guess the post office thought I moved or something, so my package was forwarded to some other address. Guess thats the last time I ever ship with the US postal service.
How perfect does the secondary have to be? I'm having a tough time keeping the wire tight, so there are a couple spots where it sticks up alittle. Also, that groove is also causing it to be alittle funny shaped. I definitly dont want to fry it because I didnt spend alittle more time prepping it.
Registered Member #146
Joined: Sun Feb 12 2006, 04:21AM
Location: Austin Tx
Posts: 1055
My cardboard coil has a pretty obvious deformation due to the overlap in the form. I wouldnt worry about it being perfect. So long as the turns arent overlapped anywhere, you should be OK. Be sure to coat it right after winding so that the coil cant loosen up and come undone!
Registered Member #53
Joined: Thu Feb 09 2006, 04:31AM
Location: Ontario, Canada
Posts: 638
Depending on how slow your winding jig is you can coat the windings as you wind them. My jig is a mindnumbing 4rpm so I have no problems winding the coil and putting on soem varnish at the same time.
Registered Member #139
Joined: Sat Feb 11 2006, 11:01AM
Location: Perth, Western Australia
Posts: 358
nik282000 wrote ...
Depending on how slow your winding jig is you can coat the windings as you wind them. My jig is a mindnumbing 4rpm so I have no problems winding the coil and putting on soem varnish at the same time.
So it takes you c4 Hours to wind a 1000 turn secondary??!! I did my last secondary (c1600t) quicker by hand!
Registered Member #242
Joined: Thu Feb 23 2006, 11:37PM
Location: Erie PA
Posts: 210
ok, I just wanted to make sure that it didnt have to be super perfect. As for the unwinding, I've kept a hot glue gun handy since I can only wind for so long before I need a break, so I just put a dab of glue on there to hold the wire. It peels right off too.
I've been wondering how everyone else holds the initally when they start to wind it...This is the solution I came up with, a bunch of cable ties strapped around the form and held in place with some hot glue. Seems pretty simple.
Registered Member #146
Joined: Sun Feb 12 2006, 04:21AM
Location: Austin Tx
Posts: 1055
I've been wondering how everyone else holds the initally when they start to wind it...This is the solution I came up with, a bunch of cable ties strapped around the form and held in place with some hot glue. Seems pretty simple.
Either glue the wire down to the form, or tie it to one of the screws holding the end cap on the form.
The winding looks fine so far. Sounds like you could use a faster motor. I did my 45" winding in about 1 hour i think.
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.
OLTC project
