Nuts & Volts

TECHFORUM
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102 April 2006
>>> QUESTIONS
I need some help interfacing
the Pocket Watch B with the
BASIC Stamp and using the pocket
watch to turn some stepper
motors at specified times.
#4061 Damian Katz
via Internet
I recently purchased a Flash
card player. The power unit that
came with it is an AC to DC supply
rated at 5V @ 1.5A. While playing,
it actually is using 620mA.
I wanted to connect to 12V
automobile power by replacing the
AC to DC unit with a 12V to 5V. I
measured the amperage and it too
was 600mA. The problem now
is that the 12V to 5V regulator
overheats and eventually will fail.
What is going on?
#4062 Emery Pudder
via Internet
Does anyone have a circuit to
convert s-video to composite
video (RCA output)?
#4063 Mike Dimatteo
via Internet
My mother is disabled and
can't hear well; one thing she likes
to do is go to the mail box. I built
a device that signals her from
inside the house when the mail
has come, so she does not have
to watch for the postal carrier.
Now, I want to take it a bit further
and connect the device to the TV
and have it send both a message
and a video flag in one corner
while she watches TV. Can someone
help or point me to a device
that can do this? I would welcome
any ideas.
#4064 Anonymous
via Internet
As a police officer who works
one-third of the time on the midnight
shift, I've taken to playing a
CD with a single, large file containing
pink noise to drown out the
daytime noises allowing me a
better period of sleep. While it
works, the reset noise — as the
file is again queued — is annoying.
Pink noise seems to work better
than white in masking sounds.
Simply detuning a receiver
works for white noise, until the
taxi cab or bus transmits right outside
my house. I'm looking for a
way to generate noise, preferably
pink noise, without a radio.
#4065 Steve Wolf, W8IZ
North Olmsted, OH
I would like to hear my TV
audio at a remote location through
external speakers or earphones.