On Tue, 30 Mar 2021 14:34:17 -0500, you wrote:
I have personally experienced this, after discovering 30 watts output on hf
on a used rig
I bought. I was not happy, but amazed to discover warmth around the fuse
adjacent power cable. I measured around 1.4 or more volts drop at radio
thanks to this
oxidation that I discovered on the fuse blades. I cleaned them back to
shiny state, and
problem was resolved for only a while...so I soldered the fuses inside the
fuse cases and no
problems since- full power out, no more excessive voltage drop (the IC 7000
near full voltage for expected power out).
I was amazed. The two lines of oxidation were very visible on the fuse
buffing them out.
Usually only one fuse is sufficient, remove the ground wire fuse.