>
> * The fan became very noisy. This was fixed by relaxing the securing bolts
> and placing thin spacers between the fan and the rear panel.
Better solution: Get an ultra-quiet fan. I’ve replaced every fan in every power
supply, computer, and piece of test equipment that I own. Totally
The MFJ-4230MVP, Powerwerx SS-30DV, and Powerwerx SPS-30DM appear to be three
of many variants of the same basic power supply. I have the Jetstream JTPS31MB
which seems to be one of the same family. It has several different
"punch-outs" to allow it to be produced in several different
I have both. Internally, the main circuit card is the same in both supplies.
Hence, the similar packaging and form factor. There are places on the main
board for different options, like the metering, voltage adjustment, etc. and
that’s how they get the different models and brands. I’ve had
I've had the SPS-30DM for 7 or 8 years. I use it to power a K2/10 and
K2/100 plus all the external accessories. Quiet, absolutely solid as a
brick. It replaced an old Astron RM-20A which would make a nice foot
warmer and massager. Very happy the the SPS and Powerwerx in general. I
buy nearly
Hi Bob,
I have a Powerwerx supply, but my model is the SPS-30DM. Variable
voltage, useful digital meter displaying voltage and current, and I've
had no noise problems with it. It's another $50 above the SS-30DV's
price, but I have no doubt noise will not be an issue with the model you
Could the Powerwerx SS-30DV be the same supply as the Tekpower TP-30SWI minus
the meter and a few dollars more? Anyone measure the efficiency of the
Powerwerx, AC input vs. DC output power?
73, Mike AC5P
On Wednesday, March 13, 2019, 09:03:41 PM CDT, Dennis Moore
wrote:
I have the
I have the Powerwerx, relegated to the closet. One year after I got it
the fan became very loud to the point of being obnoxious. Easy enough to
replace but unfortunately it isn't available anywhere. BTW, I didn't get
this one from Elecraft.
Now a nice quiet Astron RS-50M.
73, Dennis NJ6G
On
I use Astron SS-30M. This supply has both volt and current meters where
as the MFJ has one meter plus a switch. I see no need for an
adjustable supply for the station. Set it at 14.0 volts and forget
it. I do like to see both voltage and current indicated simultaneously.
73
Bob, K4TAX
I've had an MFJ-4125 in the closet since I purchased my first
K3. Given the experience with that product and it's flaws,
I would not trust another MFJ power supply for any reason.
It says everything that Elecraft resell the SS-30DV. They
have obviously tested and stand behind that unit -
Bob,
I use an IOTA DLS-55 SMPS power supply (
https://www.iotaengineering.com/dls55.htm). It provides 55 amps, doesn’t
produce RFI, is audibly quiet, and rugged. Mine is on 24/7/365. Iota also
makes them in other output currents.
Ken
WA2LBI
On Wed, Mar 13, 2019 at 8:57 PM krug261--- via
Greetings all,
I am in the market for a compact power supply. The fact that Elecraft
suggests/sells a third-party unit (SS-30DV) provides an automatic sense of
comfort. However, always trying to complicate life I was also looking at the
MFJ-4230MVP. Same dimensions, weight, power connections. I
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