Something I would like to find: A regulated nine volt power supply
that has an adapter that fits in the battery compartment and
<hates polluting the environment with used primary batteries>
You can buy battery snaps that connect to a standard 9V battery terminal.
By connecting this to a regulated 9V AC adapter, you have your result.
http://tinyurl.com/dznnx
The regulated wall-adapter is easy. Here is the first one I found with
google:
http://www.steroidmicros.com/accessories/accessory.aspx?ID=Psw9-430
Or, you could simply build one yourself using a non-regulated 12V
adapter.
You will need to build the interface between them, such as it is.
I have a logitech wireless keyboard that eats batteries like popcorn. It
doesn't work on rechargeable AA batteries, probably due to some voltage
requirement (primary cells are >1.5V when new, whereas secondary cells
are nominal 1.2V). So, I bought a surplus 8.4V liion battery, built a
little regulator circuit, and two cells + the regulator fit into a cute
little box hanging off the keyboard. However, even with this, it still
sucked (just not batteries) so I gave up using it. It would lose
synchronization with the mothership, and you had to take the batteries
out, hold down the keys for 30 seconds, put the batteries back in, hold
the button on the mothership pod for 15 seconds, and push the button on
the back of the keyboard (as documented on the logitech site... sigh).
This would happen once a day. My belief was that the microcontroller
running the keyboard was locking up. Junk.
--
Regards,
Bob Monsen
The abrupt change from rapport of water ritual to a situation in which
a newly won water brother might possibly be considering withdrawal or
discorporation would have thrown him into panic had he not been
consciously suppressing such disturbance. But he decided that if it
died now he must die at once also he could not grok it in any other
wise, not after the giving of water.