Electronics Forum / Electronics / September 2005

I bought a "DPDT Center Off Toggle" but it doesn't work the way I
thought. It has 6 poles and they assume that the middle 2 poles are
common to each On circuit.
1 6

Greets,  All
Where can I get a 1/4 inch think 6 inch diameter clear plexiglass sphere built?
It doesn't have to be one single sphere, two half spheres that be screwed togather will work also
as long as it is air tight.

Hiya,
I have 2 transformer I plan on connecting in series to form part of a
bench top power supply. These have both been pulled from old kit that I
had laying about in my shack

I want to build a preamp for my acoustic guitar, which will have a condenser
mic and a few transducers as input.
I would like to be able to fine tune each input and have it go through an
onboard mini-parametric  and or graphic eq.

I'm having problems sourcing small prototype quantities of this
component, or its larger sibling the MT88E43. Just wondering if anyone
reading this has used them and has some spare? or suggestions where to
source, I've tried disti's here, USA and europe!

After 20+ years i've finaly gotten sick of breadboarding on an old Rod
Irving solderless breadboard.
Now i'm building a self-contained unit with power supply, etc..
I was interested in knowing what things you guy's would put in one if you

I'm building a new house and will be CAT5ing it for computer/telephony ..
The main server holds our music database in the form of MP3 files plus
an FM Radio and each other computer is able to control the music being
played. Around the house we'll have various stereo systems.

Need to replace a  rechargeable battery pack from a 18 year old radio
scanner( Black panther/challenger bj200).. the label on the batteries says
sanyo but cant see any part number.. its a row of 5 AA  size looking
batteries sealed in plastic with a red and black wire exiting.. the ...

Did anyone hear about the pinout of the FSTN LCD?
What about the software used?
Thanks in advance,
Steve

Excluding driver side of things for a moment, does anyone know a cheap and
basic way to make some kind of analog or stepped output control via USB? The
task is spinning a motor at varying speeds, a pump, in this case.
Jaycar have a kit, but it also includes 2 analog intputs and 8 ...

Has anyone been having issues with SCR's (silicon controlled rectifiers)?
I've been trying a couple of different ones, and they just won't work for
me!
I've viewed some schematics with SCR's in them, and it seems you can just

The program MiscEl is a free program designed to handle lots of
different electronic calculations.
See here for screen shoots and download:
http://hjem.get2net.dk/hkj/miscel.html

I recently got a new Panasonic 5.8 GHz phone. One thing I have noticed
is that it charges very quickly. Upon completion, it says "Charging
completed" on the display screen.
Can I just leave the handset on the base unit or should I take the

Is there any commercially available tiny (to be carried in model airplane)
radio modems capable of communicating (full-dublex) at rate of 19200 baud
(or faster) in a radius of up to 5km?