Elecraft

Re: Noisy Monitor-Solved

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Jim KO5V

Re: Noisy Monitor-Solved

Just FYI, the old (quiet) 22" Samsung monitor does not use a wall-wart. The cord goes directly into the body of the monitor. When I bought it in 2008, I think it cost about $350.00.

The 28" monitor cost $169.00 about two years ago, and uses a 19V wall wart supply. I bought it for some 3d CAD design work. I think it produces about 2-3 S-units of noise. Maybe when I get some time, I'll try to fix it, but for now, it will be fine for non-radio uses.

So, I guess you get what you pay for!

73, Jim KO5V
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NK7Z

Re: Noisy Monitor-Solved

Vendors change suppliers all the time, this insures that a once quiet
piece of equipment, stands a good chance of becoming a noisy piece of
equipment in the future, or vice versa. Hence why lists don't always work.

73s and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Technical Specialist
ARRL Volunteer Examiner
ARRL Asst. Director, NW Division, Technical Resource

On 5/26/19 6:03 PM, Jim KO5V wrote:

> Just FYI, the old (quiet) 22" Samsung monitor does not use a wall-wart. The cord goes directly into the body of the monitor. When I bought it in 2008, I think it cost about $350.00.
>
> The 28" monitor cost $169.00 about two years ago, and uses a 19V wall wart supply. I bought it for some 3d CAD design work. I think it produces about 2-3 S-units of noise. Maybe when I get some time, I'll try to fix it, but for now, it will be fine for non-radio uses.
>
> So, I guess you get what you pay for!
>
> 73, Jim KO5V
> ______________________________________________________________
> Elecraft mailing list
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>
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John K9UWA-2

Re: Noisy Monitor-Solved

I intentionally purchased a pair of 28" LG Monitors for the ham shack that
had 19 volt wall warts. I knew I would have no problem replacing them with a
linear power supply. A nice big heavy Lamda 10 amp 0 to 20 volt supply
solved the problems.
John k9uwa

> The 28" monitor cost $169.00 about two years ago, and uses a 19V wall wart
> supply. I bought it for some 3d CAD design work. I think it produces about 2-3
> S-units of noise. Maybe when I get some time, I'll try to fix it, but for now,
> it will be fine for non-radio uses.
>
> So, I guess you get what you pay for!
>
> 73, Jim KO5V

John Goller, K9UWA & Jean Goller, N9PXF
Antique Radio Restorations
[hidden email]
Visit our Web Site at:
http://www.JohnJeanAntiqueRadio.com
4836 Ranch Road
Leo, IN 46765
USA
1-260-637-6426

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NK7Z

Re: Noisy Monitor-Solved

John,
That implies that all the noise is coming from the PS! I has always
assumed that most of the noise was from the monitor itself!

73s and thanks,
Dave (NK7Z)
https://www.nk7z.net
ARRL Technical Specialist
ARRL Volunteer Examiner
ARRL Asst. Director, NW Division, Technical Resource

On 5/26/19 8:34 PM, John K9UWA wrote:

> I intentionally purchased a pair of 28" LG Monitors for the ham shack that
> had 19 volt wall warts. I knew I would have no problem replacing them with a
> linear power supply. A nice big heavy Lamda 10 amp 0 to 20 volt supply
> solved the problems.
> John k9uwa
>
>
>> The 28" monitor cost $169.00 about two years ago, and uses a 19V wall wart
>> supply. I bought it for some 3d CAD design work. I think it produces about 2-3
>> S-units of noise. Maybe when I get some time, I'll try to fix it, but for now,
>> it will be fine for non-radio uses.
>>
>> So, I guess you get what you pay for!
>>
>> 73, Jim KO5V
>
> John Goller, K9UWA & Jean Goller, N9PXF
> Antique Radio Restorations
> [hidden email]
> Visit our Web Site at:
> http://www.JohnJeanAntiqueRadio.com
> 4836 Ranch Road
> Leo, IN 46765
> USA
> 1-260-637-6426
>
> ______________________________________________________________
> Elecraft mailing list
> Home: http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/mmfaq.htm
> Post: mailto:[hidden email]
>
> This list hosted by: http://www.qsl.net
> Please help support this email list: http://www.qsl.net/donate.html
>