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-   -   Power-supply with no noise (https://www.radiobanter.com/shortwave/40761-power-supply-no-noise.html)

Mr. Dell February 20th 04 06:45 PM

Power-supply with no noise
 
I just purchased a wonderful YB 400 International; great radio
for the price.

I tried to use a wall-cube PS (stabilized, well filtered) but
I get strong interferences on some SW band caused by it; with batteries
all is fine.

I was wondering where I can buy (online) a power supply (wall-cube)
particullary suitable to power SW receivers.

Thanks in advance

PS: my apologies for my very little english.


Al - KA5JGV February 20th 04 07:42 PM


"Mr. Dell" wrote in message
...
I just purchased a wonderful YB 400 International; great radio
for the price.

I tried to use a wall-cube PS (stabilized, well filtered) but
I get strong interferences on some SW band caused by it; with batteries
all is fine.


The noise may not be from your power supply, if can be from a source in your
house (or nearby house) and be conducted through your power line, then power
supply, then to your receiver. Before you invest too much in a new power
supply, try to eliminate the power lines as a source. Radio Shack has many
power supplies and they have a pretty good return policy. Purchase one from
them, connect it and see if there is a difference. If the noise is the same
then it is coming from someplace else through your power lines.

Al KA5JGV
San Antonio, Tx.



Dale Parfitt February 20th 04 08:30 PM


"Al - KA5JGV" wrote in message
...

"Mr. Dell" wrote in message
...
I just purchased a wonderful YB 400 International; great radio
for the price.

I tried to use a wall-cube PS (stabilized, well filtered) but
I get strong interferences on some SW band caused by it; with batteries
all is fine.


The noise may not be from your power supply, if can be from a source in

your
house (or nearby house) and be conducted through your power line, then

power
supply, then to your receiver. Before you invest too much in a new power
supply, try to eliminate the power lines as a source. Radio Shack has many
power supplies and they have a pretty good return policy. Purchase one

from
them, connect it and see if there is a difference. If the noise is the

same
then it is coming from someplace else through your power lines.

Al KA5JGV
San Antonio, Tx.

Amen. Just the right answer Al,


Dale W4OP




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