October 16th, 2005


Missing AC adapters

I have a dozen bins of electronics, sorted by function:

-- networking
-- phones (cell and land)
-- audio
-- power cords (extension & computer) & strips
-- power adapters
-- computer

Each one is overflowing with nicely labeled plastic bags, often listing the length of the cord (if ethernet), and the voltage and amperage (if an AC adapter), etc. It's a pretty good system. The plastic bags are the trick... without them it's a rat's nest of interlocked cables, and the system's useless.

Today dina finally got annoyed by no wireless in the house (I've never set it up) and asked I set it up.

No prob, right? I probably have enough cat-5, switches, and WAPs to network the whole neighborhood.

Yeah, but I can't find a working AC adapter. I need either 12 VDC 1.0A or 5 VDC of unknown amperage. I found the 12 V one, but it doesn't light up the WRT54G and just ends up getting really hot. I went to test it with a voltmeter, but the battery(!!) to the voltmeter is dead. Why does a voltmeter need a battery to measure voltage? Useless. And it's some bizarre non-standard battery.

Scratch that --- on to the 5V WAP11. But I can't find any 5V AC adapter around here except for three that are 1.2A and don't fit.

Went to look online to get a new AC adapter... $9 + $9 shipping. Hell if I'm gonna pay $18 for a new wallwart. I can get a whole new WAP for like $70 at Central Computer.

I don't know any electronics surplus stores around here. Surely I can go somewhere local and buy an AC adapter?

the content-addressable internet

I've always been a fan[1] of files/patches/changesets represented by digest, but here's another cool case:

Mailing list post, "Yes, that was fixed in 55820ee2f8c767a2833b21bd365e5753f50bd8ce".

Without going to a git browser, and without updating my local sources, I just google it using Firefox and presto, there it is.

Props to Google for not restricting the length of search terms.

[1] In theory, if the hash function is good. Not MD5. Arguably not SHA-1, either, lately. I think any content-addressable system should prepend the digest with the function's name: "tiger:f8c767a2833b2f8c767a2833b2", etc., to future-proof it.