Very often the simplest things work best and dont require a P H & D to
implement.
Carl
----- Original Message -----
From: "Ryan Foster" <foster.ryan@gmail.com>
To: <amps@contesting.com>
Sent: Wednesday, February 04, 2009 4:43 PM
Subject: Re: [Amps] SB200 and Genie garage door opener
>I don't know what your garage door opener looks like, but I had a
> similar problem with one from Sears that was cured with two .01
> microfarad caps.
>
> --Ryan w8cya
>
> On Wed, Feb 4, 2009 at 4:22 PM, Jim Brown <jim@audiosystemsgroup.com>
> wrote:
>> On Wed, 4 Feb 2009 12:32:23 -0800 (PST), Dave Haupt wrote:
>>
>>>I put a serious AC line filter on the garage door opener,
>>
>> Great information, Dave. If this is what's happening to Frank, the
>> SB-200 may be causing other problems via the power line that
>> haven't yet been discovered. In that case, it would be good to put
>> a power line filter on the SB-200. There's an old-fashioned
>> electronics surplus warehouse in Silicon Valley called HSC (also
>> known as Halted Specialties) that has a broad section of line
>> filters from good companies like Corcom and Delta, nearly all of
>> them rated for 250VAC. A month or two ago, I found several that
>> are big enough to use on my Titan power amps and another that is
>> big enough to put on the 6kVA generator that runs my well motors!
>> I think I paid about $15 for the Titan-size filters, and maybe $25
>> for the 40A filter. HSC has a web presence. Google to find them.
>>
>> Another point though. Often, RFI problems that are blamed on the
>> power line are really the result of improper grounding. All
>> grounds in a home -- ground rods, antennas, towers, ham shack,
>> telephone, CATV, and power system bond -- must be bonded together
>> outside the home at a single point. This is critical for lightning
>> protection, but it's ALSO critical to minimize RFI and hum/buzz
>> problems. If one or more of those bonds is missing, that could
>> easily cause problems with RFI, hum, and buzz.
>>
>> 73,
>>
>> Jim Brown K9YC
>>
>>
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>
>
>
> --
> "A free people ought not only to be armed and disciplined, but they
> should have sufficient arms and ammunition to maintain a status of
> independence from any who might attempt to abuse them, which would
> include their own government." --George Washington
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