[Tower-Speak] plans needed please

[Allan Henry Kaplan]

Chad,
Your best bet for a VHF-UHF load adequate for ham radio purposes(but
admittedly inadequate for precise lab measurements at UHF) is to get an
old Heath Cantenna, or perhaps the currently available MFJ equivalent
dummy load.  Either will work better than one you would likely build and
will do fine for transmitter testing and the like.

Making it pull secondary duty for testing power supplies is just not
practical unless a fixed 50 ohm load would suit your purposes -- which I
doubt!  After all, 50 ohms will load a 12.5 volt power supply to a
mighty 250 milliamperes!   Making the load adjustable would surely screw
it up for VHF and UHF work with RF.  You are really looking for two
different loads -- one needs to present a nearly pure resistive 50 ohms
from HF thru UHF and the other needs to be fairly variable , with a rang
dependent on what you want to test with it.   The "all-purpose load" you
describe just is not realistic.

Hope this helps,
73, Allan, W1AEL.