K1 Power Supply Opinions

[David Toepfer]

QUESTION:

Does anyone prefer one of these 2 PS's as their K1 PS,
or do you prefer a different power supply entirely?

CUP36-12-1
        <http://www.mtechnologies.com/cup/>

MFJ-4103
        <http://www.mfjenterprises.com/products.php?prodid=MFJ-4103>

dt
.

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[Bob Nielsen]

On Sat, 2005-06-04 at 23:39 -0700, David Toepfer wrote:

> QUESTION:
>
> Does anyone prefer one of these 2 PS's as their K1 PS,
> or do you prefer a different power supply entirely?
>
> CUP36-12-1
> <http://www.mtechnologies.com/cup/>
>
> MFJ-4103
> <http://www.mfjenterprises.com/products.php?prodid=MFJ-4103>
>

I have a MFJ-4103 and have used it extensively with my K2, including a
trip to Europe (it runs off 240 VAC as well, and uses a standard desktop
computer power cord).  There was no noticeable noise from the supply.  I
presume it would work fine with a K1 or KX-1, as well.

It would be nice if the output voltage were a bit higher so it would
charge the KBT2.  The manufacturer of the CUP36-12-1 makes a 15 volt
version <http://www.xpiqmedical.com/cup36.htm>, but that might be too
high, although the addition of a series diode should do the trick.

Bob, N7XY


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[Leigh L. Klotz Jr WA5ZNU]

I have the MFJ supply and it does make lots of noise.  I modified it to
produce the K2 charging voltage and use it only for that.
Leigh / WA5ZNU
On Sun, 5 Jun 2005 8:22 am, Bob Nielsen wrote:

> On Sat, 2005-06-04 at 23:39 -0700, David Toepfer wrote:
>>  QUESTION:
>>
>>  Does anyone prefer one of these 2 PS's as their K1 PS,
>>  or do you prefer a different power supply entirely?
>>
>>  CUP36-12-1
>>   <http://www.mtechnologies.com/cup/>
>>
>>  MFJ-4103

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[Eric Ward-3]

Jameco carries a variety of linear, regulated supplies in different
amperages and voltages.  They look like "wall warts" but they are not,
provided you make sure you are ordering a linear regulated supply, and
not an unregulated swticher.

Here is the relevant catalog page off their website:
http://www.jameco.com/Jameco/catalogs/c252/P174.pdf

I bought a 12V 1A job for my KX1 for >$20 including shipping, and it
works like a champ--no noise at all.
Usual disclaimer about no commercial interest in Jameco.

73 Eric N0HHS KX1 #670

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