Here is my version of a 12 Volt dummy load: <http://astron.w4zt.com/dload.html>
And, for those of you that are like me and would like to load test HIGH VOLTAGE supplies, here's my high voltage dummy load: <http://gs35b.com/hvload/index.html> Careful... either of them can burn you... BAD. The high voltage dummy load can KILL you if you get into it. 73, Tony W4ZT Mike Morris wrote: > Years ago I saw a homebrew version of that: > > Twenty tungsten auto headlights in a metal box, with a switch > for each bulb, and a couple of heater blowers. Bulbs were > 50 cents at the auto junkyard, as were the headlight switches. > They were wired so that the parking light position (half-way out) > lit up the low beam, and the headlight position (all the way out) > lit up the high beam as well. > > A regular wall thermostat was used along with a relay to run > the heater blowers (off of the 12v input). > > Cheap to build and worked just fine.... > > Mike WA6ILQ > > > At 10:46 PM 2/11/06, you wrote: > >> Brett, I have a copy of a commercial "Load Bank" which is nothing more >> than >> a bunch of large resistors in a case controlled by switches. >> I'll dig it out and scan it for you.... >> >> These people get $3,000.00 for this package ! I have the stuff to >> build one >> and have about $75.00 invested so far..... >> >> 73 John VE3AMZ >> >> ----- Original Message ----- >> From: Brett <mailto:[EMAIL PROTECTED]> >> To: [email protected] >> <mailto:[email protected]> >> Sent: Saturday, February 11, 2006 9:28 PM >> Subject: Re: [Repeater-Builder] Cheap "Tunnel" Heatsink >> >> Hi guys does anyone have that circuit diagram I need to build one >> to test 12 to 60 volt supply. >> Thanks in advance. >> Brett >> >> ----- Original Message ----- >> From: [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> >> To: [email protected] >> <mailto:[email protected]> >> Sent: Sunday, February 12, 2006 10:01 AM >> Subject: Re: [Repeater-Builder] Cheap "Tunnel" Heatsink >> >> In a message dated 2/11/2006 3:10:54 PM Eastern Standard Time, >> [EMAIL PROTECTED] <mailto:[EMAIL PROTECTED]> writes: >> http://www.ve3tjd.com/pictures/tech%20stuff/ >> >> What a perfect heatsink for that variable power supply load that was >> bouncing around on R-B about a year or two ago. You could vary the Amp >> Load on your power supply using a variable pot control. >> Gary K2UQ Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/Repeater-Builder/ <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
