My dad has had a wall wart that does this since the 80s. Goes from 1.5 to 9 volts and even lets you adjust barrel polarity.
I broke so many electronics with that thing…
Comment on I found an interesting USB-C alternative to barrel jack wall warts. Thought I'd share...
cmnybo@discuss.tchncs.de 11 months ago
It would be much more useful with USB PPS support for adjustable voltage and barrel plugs that can be swapped.
Semi_Hemi_Demigod@lemmy.world 11 months ago
cmnybo@discuss.tchncs.de 11 months ago
Yes, you definitely have to be careful with them. They do come in handy when I can’t find the correct power supply or even one that will work despite having a 50 pound bin full of them.
Onomatopoeia@lemmy.cafe 11 months ago
Yea, I do have a box of wall warts if different voltages, max current, and a box of coax adapters. Not hard for me to grab what I need and modify as required.
I also have a box of USB C chargers, many of them PD. This cable is a neat concept, but like you said it needs coax adapters, and adjustability on the cable for voltage.
aquafunk@lemmy.sdf.org 11 months ago
FYI they sell one that can be reprogrammed. It’s still USB PD, but that covers most use cases.
They also sell a kit of compatable barrel jack plug adapters of many shapes and sizes.