Are you referring to the +5v output from the computer power supply? Would
that be used as a trigger voltage between the car radio and it's amplifier?
"gregz" wrote in message
...
"jbclem" wrote:
I like the idea of using a computer power supply, and I have several
used
ones around. And thinking about the 12v limitation, I've run my car
radio
many times with the voltage around 12-12.5v, and the car itself (VW
Vanagon)
will start up as long as it's computer gets about 10.5 to 11v. So the
radio
must be designed to function with less than 12v. Since this car has
been
parked for two years, and the battery goes down regularly, I'll check
and
make sure the radio and amp will work at and below 12v.
Thanks for the ideas...
John
"gregz" wrote in message
...
"Bob F" wrote:
jbclem wrote:
I live in a bad FM reception area and I've noticed that my Blaupundt
Tucson (in my car) gets much better reception than my portable Tecsun
DSP radio. I'd like to hook up a Tucson inside my house and have to
figure out a power supply/converter for it. Being a tuner, it needs
an amplifier and I have some Blaupundt amplifiers that go with the
various Tucsons I have. But I don't know exactly what type/brand of
power supply I would need for running this setup of my house current.
Can someone give me some pointers towards figuring this out.
Radio shack and other places probably have power supplies for 12V
devices, often
with a cigarette lighter jack. You could probably get away using a 12
V
"wall-wart" as long as it has sufficient amperage output.
Bench supply
http://www.mcmelectronics.com/product/72-8142
Wall supply
http://www.jameco.com/webapp/wcs/sto...001_2151208_-1
Notice it's almost impossible to find a wall supply of nominal 13.8
volts.
It all depends on your loudness levels. Loud means high peak amps.
Depending on the supply, some computer supplies deliver 10 amps or more
at
12 volts. You can find these for free.
Greg
Just check up on how to load 5 volt section if needed.
Greg