[HomeBrew] Computer Speaker RFI

Mon, 28 Jul 2003 20:08:37 -0700

Hi Richard et al;

Radio Shack has a whole page full of amplified computer speakers.
However, if you have a lot of RF in the shack you may have the same
problem. Have you tried bypassing the base of the transistors ? A .01 mfd
cap to ground might do it. Good luck.

Ed Richards K6UUZ

On Mon, 28 Jul 2003 17:37:05 -0400 "R. Blackman"
<[email protected]> writes:
> ** Please do NOT cross-post messages to multiple mailing lists on the 
> "To:" or "CC:" line of the e-mail message. **
> 
> Hello to the group,
> I'm not sure if this is off topic or what...
> I would like to install some amplified computer speakers in the 
> shack.
> The one's I have now have no shielding whatsoever, 2 conductor line 
> chord
> and
> howl cq dx, cq dx....
> I have layered tin foil inside the plastic cases, placed toroids on 
> the
> wires,
> soldered a ground lug to the circuit board and grounded the beasts. 
> No help.
> I would like to throw them out  yesterday, and purchase some much 
> better
> ones.
> Question:  Does anyone on list have a good suggestion / and or 
> experience
> with
> a certain brand or model? The local computer shops in my area have 
> no idea
> what
> I'm talking about and the few computer speaker web sites do not 
> address the
> problem.
> Thanks, /Richard/ VA3NDO
> 
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