How to operate a straight key

Since I have got my new straight key, so here is a very good video
to teach us how to operate straight key
It's Japanese language, but there are English caption on it, so enjoying.

K-4 Heavy Duty Telegraph key for Ham Radio

I just got my telegraph key today. It's pretty cool and I love it.
DJG-4 heavy duty telegraph key-- from China
This is the best telegraph key in China, I got it from ebay only $15.

Acer Aspire One BIOS Recovery

The AA1 has a built-in BIOS recovery routine, making it possible to flash the BIOS even if the system doesn't boot anymore. It's only meant for emergencies and may void your warranty, so use at your own risk.

Follow every step carefully!

First format an USB stick with FAT.

Download the latest BIOS, and put both FLASHIT.EXE and the BIOS file in the root directory of the stick. Rename the BIOS file to ZG5IA32.FD, that's important. Do not remove the USB stick.

Turn the AA1 off, make sure both battery and AC adapter are connected. Press Fn+Esc, keep it pressed and press the power button to turn the AA1 on. Release Fn+Esc after a few seconds, the power button will be blinking. Press the power button once. The AA1 will now initiate the BIOS flash, do not interrupt it under any circumstances. After a while the power button will stop blinking, and the AA1 will reboot shortly after. Wait patiently.

The BIOS has been flashed and all settings reset to default.

If for some reason you made a mistake during the procedure and it doesn't reboot by itself wait 5 minutes before turning it off, just to be safe that it isn't still flashing the BIOS.
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The BIOS is now also available from Acer european server. There is actually a text file included which recommends to flash the BIOS from DOS via a bootable USB stick.

Also available from here if above does not work

BIOS 3310 • Download

SONY NWZ-B105F Boot Error Fix

It Fix problem like:
player won't connect your computer
player won't turn on
player automatically turn off

NWZ-B105F Boot Error Fix:

Step 1. Press play while inserting into USB slot
Step 2. Windows recognizes, follow instructions to allow Windows (XP) to search for software (it installs device recovery)
Step 3. Format Drive using My computer/Windows Explorer
Step 4. Install Patch 1.1 from Sony.

So just MAKE SURE YOU PRESS PLAY BUTTON BEFORE/DURING FIRMWARE UPDATE.