Electronics Forum / Electronics / September 2003

Sound Blaster 16 ISA has the hardware FM synth OPL3 and the driver
is named "Creative Music Synth [220]". The 220 is the address port for
the driver.
You'd be suprised. The driver makes as much of a difference as the

Need help in identifying a zener diode on a Sharp CX3448  small portable TV.
The diode D731 and the number on the diode is R2M 94.
Regards and thanks a lot.
Don Goulding

Two-year-old rechargeable 12 volt batteries for Ryobi power drill sit
endlessly in the recharger module, showing charging lights. But they
never exit with more than a little juice. (New ones at Home Depot cost
almost as much as a whole drill kit.)

Hi list,
Someone told me that it is normal for devices (TV's etc) to put a current on
the shielding of the TV-cable. Is this true? Is this also true for
certified devices?

I have completed my quest and found the answer for me.
Here is the outcome of my power transformer information search
http://www.ncable.com.au/~tony.r/Transformer_2_Page.html
The kind people at Hammond come through with info and made it easy to

I know that Philips have the SAA5264/5 teletext decoder but have been quoted
a lead time of 17 weeks.  Are there any alternative manufacturers or am I
stuck?
Many thanks for any help.

i would like to develop a dongle for pda as my school project, can
anybody give me some information about that?
if somebody can help, please let me know.
Thank you very much in advance!

I was wondering if anyone knows where I could find a 16V DC, 2.8Amp power
supply for my laptop in Melbourne (doesnt have to be specific to my laptop,
any generic p/s with those specs will do). More detailed specs on the power
supply required are available here:

I've noticed ultraviolet laser diodes have come out and I'd like to
use a UV laser to create a path of ionised air along which a pulse of
high voltage electric current can travel. I've heard of people doing
it before so I know it's possible. I want to ask if anyone can suggest

Looking to notch out a 400HZ whine from some audio circuits connecting
remote manned sites to a central location.
The audio is microwaved from remote location to the central location.
Would like to know the formula for determing the resistor and capacitor

ugh.  my university keeps cancelling all their analog electrical
engineering courses before i get a chance to take them, and intends to
cancel more courses next year.  this all seems to be in favor of
unproven fields such as nanotechnology, and an insane amount of

This is probably slightly OT but does anybody know who would be the best
person in Melbourne to contact about obtaining a BOCP. I have an Adv Dip Eng
(Electronics) and 13 years experience with many forms of telecommunication.
I know that the BOCP is no longer required to work in ...

5 V +ve and gnd are connected to the computer power supply.
backlight LED display rather hot...higher than I read from the spec.
20 x truly.
please comment.

IF any of these are kicking around  built or not built .. and hopefully
some manuals or docs with them ..I believe based on 6800 chip ..contact me

Hi after any of these micro books ..most of them have been around since
pre 1980's ..if you have any for sale (or trade for something) let me
know ...
The Blacksburg Continuing Education` Series (howard W.Sams &Co Publisher)