The Netgear RT-314 Router, A piece of junk with even worse support

Click on the link to read about a really inferior product with really inferior service. Netgear RT-314 Internet Router

HP Scanner power supply

I acquired a HP scanner. It worked fine. After a few years it failed. I didn't know why. After a little effort, I found the 12v power supply, often known as a wall-wart, had failed. It had a standard 5mm coaxial plug, but it was a non-standard depth. Fortunately, I had a spare power supply from my failed Best Data Cable Modem. A ugly splice job later, and the cord from the HP wall-wart was attached to the cable of the Cable Modem. Fixed the problem, the scanner is now working fine.

Acer aspire 5100 bl51 Notebook

After about 1.2 years, the battery failed. The warranty was one year. When charged, the notebook worked for about 10 minutes, and then shut down. It turned out that cells were ok, but the protection circuit in the battery failed. I replaced the battery with one bought on ebay, and it worked for another year before the notebook bricked.

Lenovo G555 notebook computer

This is a decent, entry level computer. Worked fine for about a year. Then the battery pack failed. It would work for about 5 minutes, then shut down. I thought the batteries may have failed from the notebook being plugged in too much, overcharging the batteries. I ended up getting a new battery pack on ebay that came with a 3 year warranty. I took the battery pack apart to get the lithium batteries for flashlight use. I thought a few might still be useful. It charged them up, and ran them, 2 at a time in a very bright flashlight I have. I ran the flashlight for between 1 and 1.5 hours at medium brightness. Every battery worked fine. Therefore, I conclude that the protective circuitry inside the Lenovo battery failed in some way. The circuitry is supposed to protect against overcharging, over discharging, over temperature and the like. I expect lithium ion batteries to wear out, but I expect electronics to be far more reliable. Of course, anything can fail...

Toshiba L750-A7280 Notebook

After about 1.5 years, the battery failed. The warranty on the notebook was one year. When charged, the notebook worked for about 10 minutes, and then shut down. I am not impressed by these cheap notebooks. In my experience, Dell, Compaq, IBM and Apple make reliable notebooks.

LG 995e 19 inch CRT

I bought this in 2000. In 2007 it failed. The power button doesn't turn green when you press it. No idea why. I guess I got my money's worth since it lasted 7 years.

120mm temperature sensing fan

I don't recall the brand, but they were 38mm thick and had a built in thermisistor. I bought 4, and they all failed in service. It is pretty rare for fans to fail, and these are the only ones I recall failing.

Inline 3 pin fan controller

These are a little black brick, roughly 1.4cm x 2cm x 6cm, with a knob on top to control the fan speed, and a 3 pin socket on one side and a short 3 pin wired connector on the other end. Their current capacity is 1000ma, which should be more than enough for most fans. They cost $3 or $4 from china on ebay. I had one fail in service. Yesterday, I had another one fail. I took it apart. There is a circuit board with the 3 pin plug soldered on one end, a potentionmeter, a small capacitor, and a 3 pin to-220 semiconductor with a heatsink. It might be a transistor, or an IC. On the other end are short wires with a 3 pin plug. When I said the 3 pin plug was soldered on the circuit board, when I really meant was it was supposed to be soldered on the circuit board. It was not. I am not sure how it ever worked, but when I tool it apart the 3 pin plug was wiggling freely. Fortunately, I soldered it back together, and it worked fine. There are clearly quality control issues with these. Perhaps I will be able to fix the one that broke a long time ago...

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