How to modify electric fence Output? - Page 2 - diyAudio
Go Back   Home > Forums > General Interest > Everything Else
Home Forums Rules Articles diyAudio Store Gallery Wiki Blogs Register Donations FAQ Calendar Search Today's Posts Mark Forums Read

Everything Else Anything related to audio / video / electronics etc) BUT remember- we have many new forums where your thread may now fit! .... Parts, Equipment & Tools, Construction Tips, Software Tools......

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 31st August 2013, 08:53 AM   #11
diyAudio Member
 
Join Date: Aug 2013
Two Spoons I need your help!
I 'm a snail farmer and i have an energiser for the electric fence which i want to decrease it's voltage. The voltage that provides with no load is 8000v and on 500ohm load 2700v. I want to decrease it for not harming the snails, but just to prevent them from escaping at about 3000-5000v volts. The model that I use is Hercules Hc 850. Input 12v 95mA, stored power 1.25Joules, output power 0.85 joules. What type of resistor do i have to use for that? I have orderd a " Rotary Wirewound Adjustable Resistor Rheostat 500 Ohm 50W". Will it do the job?Its specifications are below.
Thanks anyway my friend!

Specification:
Product NameRheostatMaterialCeramic, MetalColorAs Picture ShownPower Rating50 WResistance Value500 ΩMounted Hole Dia4mm/ 0.157"
Bottom Screw Diameter5.5mm/ 0.216"Bottom Base Diameter54mm/ 2.1"Shaft Size33 x 16mm/ 1.6'' x 0.6''(L*D)Body Size73 x 27mm/ 2.9" x 1"(D*T)Net Weight150gPackage Content1 x Rheostat
  Reply With Quote
Old 1st September 2013, 04:28 AM   #12
dangus is offline dangus  Canada
diyAudio Member
 
Join Date: May 2004
Location: Vancouver Island
I would have thought that creatures made from mucus could be deterred by just a few volts. Exactly how big are these giant mutant snails?
  Reply With Quote
Old 1st September 2013, 03:17 PM   #13
diyAudio Member
 
Speedskater's Avatar
 
Join Date: Sep 2002
Location: Lakewood, Ohio
Note that Two Spoons has not visited the DIY Forum since 2007.
__________________
Kevin
  Reply With Quote
Old 20th May 2016, 06:46 PM   #14
micfly is offline micfly  United States
diyAudio Member
 
Join Date: Jun 2005
Location: houston, tx
Default old post i know

Quote:
Originally Posted by agm2003 View Post
Thanks so much for your help!
Did you ever get this to work agm2003?
  Reply With Quote
Old 20th May 2016, 09:52 PM   #15
diyAudio Member
 
Speedskater's Avatar
 
Join Date: Sep 2002
Location: Lakewood, Ohio
'agm2003' has not been to the forum since 2007 either.
__________________
Kevin
  Reply With Quote
Old 21st May 2016, 01:22 PM   #16
diyAudio Member
 
Refugee1's Avatar
 
Join Date: Jul 2012
Location: Worksop
I made one up with a pencil style ignition coil.
It produces a good high output voltage but not more than a clip around the ear worth of energy.
It uses the start-up sequence of an SMPSU.
I built it to stop domestic cats digging up seedling beds in the spring when they go into kill everything new born plant or animal mode.
It just makes them sulk and does no lasting harm.
  Reply With Quote
Old 21st May 2016, 07:57 PM   #17
micfly is offline micfly  United States
diyAudio Member
 
Join Date: Jun 2005
Location: houston, tx
Default Just tried the resistor trick

Well I just tried the resistor trick and it's not working yet. I first added a 25W 1.5K ohm ceramic flameproof resistor inline on the hot side. My fence tester measured 5K volts (max reading on the meter and the same reading without the resistor).

I then added an additional 470 ohm resistor inline for a total of 1.97K ohms... still the same reading. And then added another 470 for a total of almost 2500 ohms... still hitting the 5K v mark. I touched the wire to feel it for myself and it's still packing a pretty good wallop ��

These were all the resistors I got at Fry's so I can't experiment anymore today.
Here is what I'm dealing with:
http://www.amazon.com/Fi-Shock-EA2M-...ilpage_o01_s01

http://www.amazon.com/Fi-Shock-A5LVT...ilpage_o01_s00
  Reply With Quote
Old 21st May 2016, 10:58 PM   #18
diyAudio Member
 
JonSnell Electronic's Avatar
 
Join Date: Dec 2012
Location: The Jurassic Coast, England. GB
Send a message via Skype™ to JonSnell Electronic
All you need is a 12Volt battery, a 12Volt motor running at 2RPM a contact set with 1u0 capacitor and an ignition coil. Get the idea?
Why go complicated.
__________________
Support for Flying Mole Class D, Valve Equipment and designs both new and old. www.jonsnell.co.uk
  Reply With Quote
Old 22nd May 2016, 12:36 AM   #19
nec3 is offline nec3  Turkey
diyAudio Member
 
Join Date: Jun 2005
Location: Ankara
Quote:
Originally Posted by micfly View Post
Well I just tried the resistor trick and it's not working yet. I first added a 25W 1.5K ohm ceramic flameproof resistor inline on the hot side. My fence tester measured 5K volts (max reading on the meter and the same reading without the resistor).

I then added an additional 470 ohm resistor inline for a total of 1.97K ohms... still the same reading. And then added another 470 for a total of almost 2500 ohms... still hitting the 5K v mark. I touched the wire to feel it for myself and it's still packing a pretty good wallop ��

These were all the resistors I got at Fry's so I can't experiment anymore today.
Here is what I'm dealing with:
Amazon.com : Fi-Shock EA2M-FS AC Low Impedance Energizer, 2-Mile : Livestock Equipment : Patio, Lawn & Garden

http://www.amazon.com/Fi-Shock-A5LVT...ilpage_o01_s00
You measure the voltage right at the output of the energiser?

Adding resistors in line will just decrease the load so main output will increase but the voltage at the fence wire would be dependent of the conductivity of the subject/animal.

You can, instead, place resistor in parallel with the output so that load increase and the voltage will reduce.
  Reply With Quote
Old 26th May 2016, 12:29 AM   #20
micfly is offline micfly  United States
diyAudio Member
 
Join Date: Jun 2005
Location: houston, tx
Default Got it

So here's what I ended up with. Click the image to open in full size.
My electric fence tester was pegged at 5500v before and now reads about 1000v. I also added a 1amp fuse so it's not going to hurt anybody.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Want to modify Nakamichi MB10 with OMS5 output section gto127 Digital Source 4 31st March 2015 03:13 PM
How to modify the walt jung circuit to give 5volt output wickedman308 Power Supplies 1 23rd January 2010 09:32 PM
Modify & build out (2) Western Electric 300B / 2A3 Hammond monoblock amps & UTC LS-5 quality sound Tubes / Valves 0 9th May 2009 03:59 PM
Electric Fence DavidWardlaw Everything Else 15 20th July 2007 01:05 AM


New To Site? Need Help?

All times are GMT. The time now is 06:00 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2016 DragonByte Technologies Ltd.
Copyright 1999-2016 diyAudio

Content Relevant URLs by vBSEO 3.3.2
Wiki