The AM Forum
December 10, 2024, 02:42:06 AM *
Welcome, Guest. Please login or register.

Login with username, password and session length
 
   Home   Help Calendar Links Staff List Gallery Login Register  
Pages: 1 [2]   Go Down
  Print  
Author Topic: Want to build a 5 Gallon "Cantenna" dummy load.  (Read 21186 times)
0 Members and 1 Guest are viewing this topic.
WB5IRI
Contributing
Member
*
Offline Offline

Posts: 117


« Reply #25 on: February 23, 2015, 01:18:27 PM »

A pair of these will give you 1600 watts, 50 ohms :
http://www.ebay.com/itm/Dummy-Load-Resistor-Diconex-39-0062-800W-100Ohms-/201289126263?pt=LH_DefaultDomain_0&hash=item2eddc45177

Of course, you still need to cool them.

Doug
Logged
Opcom
Patrick J. / KD5OEI
Contributing
Member
*
Offline Offline

Posts: 8301



WWW
« Reply #26 on: February 23, 2015, 08:35:57 PM »

just use more of them and spread them out. He wants 5K load anyway.

Oil cooling's OK. Some of the stuff is only called 'oil' in the vernacular and isn't likely to burn.
Logged

Radio Candelstein
WD5JKO
Member

Offline Offline

Posts: 2002


WD5JKO


« Reply #27 on: February 28, 2015, 06:39:49 PM »

 "The laws of nature are carved in stone thankfully"

What do you do when your customer, or boss feel differently about that? You certainly cannot tell them they are FOS.  Huh

Back to point, the load need is 5kw, and not necessarily 5 gallons. It would help to know the duty cycle need if less than 100%.

A few days ago at work, we had a 3kw rf amplifier go open loop. The thing put out 4.8 kW into our Bird 3000 watt 30 db attenuator. We shut it down fast!

Jim
Wd5jko



Logged
Pages: 1 [2]   Go Up
  Print  
 
Jump to:  

AMfone - Dedicated to Amplitude Modulation on the Amateur Radio Bands
 AMfone © 2001-2015
Powered by SMF 1.1.21 | SMF © 2015, Simple Machines
Page created in 0.045 seconds with 18 queries.