I wrote a post in august 2017 lamenting the power output woes of my IC9100 radio, problems with the Blade fuses getting VERY warm and causing voltage drop. I thought I had solved he issue with cleaning the fuse contacts and replacing the fuses with new ones to ensure the contacts were good.
Time moved on and I didn’t really play radio in any real for anger for a couple of years and the power issue wasn’t a problem, some very minor RX activity, the odd check in on the local club net or 2m repeater never stressed the radio.
Forwards to 2020, and the world is a very different place, CoVID19 and lockdown has seen me spending more time at home and this encouraged me to fix the broken HF wire and get the radio going again.
Some playing with the radio again saw the return of the power drops and blade fuse issues, clearly i had to resolved the problem.
So I went looking for alternative solutions, and stumbled upon “MIDI” type screw down fuse terminals. These screw down fuses have become popular for 12v power systems in cars/4wd/camper setups and are available for “reasonable” cost in australia. (around $20aus for 2 blocks and 4 fuses)
A pair of fuse blocks was ordered and the Icom DC power lead chopped around 50cm form the back of the radio, I then crimped on some lug terminals and installed with some 30A midi fuses and my overheating power issues are well and truly solved.