[Elecraft] (OT) - Power Supply for SGC-237

[Don Wilhelm]

  Stan,

For an unregulated supply, try this MPJA unit - 
http://www.mpja.com/prodinfo.asp?number=17636+PS -
You will probably want an enclosure, so look in the left side of the 
webpage for Boxes and Cabinets.

Or purchase a transformer, a bridge rectifier and a capacitor and build 
your own power supply.

Another alternative is to use a 12 volt battery charger - just add a 
capacitor (or a battery) to the output.

73,
Don W3FPR

On 11/2/2010 8:19 PM, stan levandowski wrote:
>    Bob, I guess I missed this in the FAQ:
>
> "Analog or switching power supplies themselves are highly susceptible
>> to RF. A few millivolts of RF in the power supply can create an
>> instability which could lead to a catastrophic failure. We never
>> recommend regulated or switching power supplies because no one can
>> predict when RF is upsetting the power supply and all installations
>> differ in characteristics."
> I can definitely imagine my 20 foot combination coax/power supply line
> acting like an antenna.
>
> So now all I need is a recommendation for a small UNregulated 12VDC
> power supply that isn't a "wall wart".
>
> Stan Levandowski WB2LQF
> HF QRP CW -- Doing more with less for over 50 years!
> QCWA #35038   OOTC #4558   NAQCC #4740   SKCC #6488   FISTS #14992
>
>
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