Month: April 2019

Fujitsu P20-2 finalized CCFL to LED conversion (#P9F1)

Canned content, for when I’m busy with stuff that’s not definite yet.

A while back, I tried the CCFL to LED conversion on one of my Fujitsu 20″ monitors. I only had warm white LED strips available at the time, mostly because I no longer require cold white DO STUDY NOW atmosphere at home ;) However piss-yellow doesn’t really shine behind an LCD, so I ordered some cold whites. AliExpress -“2018 New 1m 1200LEDS 2835 SMD LED Strip 24V 1900lm 240LED/M Gold Line LED Ribbon LED Tape Light Cool White Warm White Natura”. 6000K color, 12V, “14-18W”. […]

28th April 2019 28th April 2019 By Bzzz In No Comment

APC Back-UPS capacity upgrade (#P11F1)

Was that foreseeable? Not sure, but the design called for it…

Now that my modified APC UPS is running smoothly again (#P11), I still had two pairs of these nice XT60 connectors laying around. And as old, to-be-recycled lead acid batteries from UPSes pile up at work, I took one or two of them with me for testing at my electronic load. Like previous batteries, quite a lot of them are really toast, but some of them are in decent condition. Not as in “like new, ready for another year of service in a commercial fire alarm system”, but still holding a significant fraction of their original capacity and delivering a suitable amount of current. […]

7th April 2019 8th April 2019 By Bzzz In 2 Comments