[AMRadio] Mobile Base for Heavy Iron

Robert Nickels w9ran at oneradio.net
Wed Apr 12 23:01:59 EDT 2006

I'm really pleased with the mobile base I built for my 20V-2 and wanted 
to pass along the information to others.   I really wanted to be able to 
move the transmitter around, but didn't want to raise it off the floor 
any more than necessary for stability reasons.  The answer came when I 
found a seller of ball transfers on eBay at a very good price. These 
have a 1" carbon steel ball rolling on 80 internal 1/8" dia. balls  and 
are rated for 75 pounds each - -  
http://www.hudsonbearings.com/SBT-1.html    I went with 20 for a total 
capacity of 1500 pounds.   The ball transfers have 3/4" long studs on 
the back so all I had to do is drill holes and screw them into a piece 
of 3/4" plywood with a pipewrench.   It only took an hour and a half to 

If you want to be able to move heavy stuff, this is the only way to go, 
and also the cheapest, with the ball transfers going for a buck 
apiece.   Search for eBay seller
katamay62 and let him know how many you want, he'll set up a Buy It Now 
for you.  He has lots of 'em.

Here are some pictures of the final result, once I paint the plywood 
black it will be hard to even tell it's there


This only raises the transmitter by 2 1/4" and leaves the steel base 
accessible and the transmitter supported just as Collins intended, only 
this "floor" moves!   Should be adaptable to any big rig.

73, Bob W9RAN

More information about the AMRadio mailing list

This page last updated 23 Jan 2018.