Ramsey 2013 Catalog - page 72

Power Adapters
72
You will see a change this year with the power supplies and "wallwarts"
available for our kits and products. For years, like everyone else, we provided the typi-
cal 12V wallwart, which was nothing more than an unregulated power supply that pro-
vided anywhere from 12-17 volts unregulated, with the optimum being 12V at the nor-
mal load.
Today's technology requires more stringent regulation, filtering, and RF and EMI sup-
pression, as well as conformance with various regulatory mandates regarding efficiency
or "going green". Well, we've gone the extra mile for our customers, and had a number
of custom power supplies designed to also help bring them into today's technology.
The AC121 is our primary hobby kit power supply, replacing our former workhorse
AC125 power supply. To begin with, it's a high performance regulated supply giving you
a precise 12VDC output at 1 amp. It's switching design gives you a wide AC input range
from 100-240VAC between 50-60Hz to make it compatible with all 110VAC, 220VAC,
and all worldwide power standards.
Then, unlike a lot of universal power supplies, we demanded not one, but two RF ferrite
cores, one at the input end, and one at the output end, to suppress any inbound and
outbound RF and EMI spurious signals.
And finally, in accordance with future green mandates, made it compliant
to Level-V efficiency! This is something already required in some EU
jurisdictions, and will eventually be required in the US. You're already
there, and you've already gone green, with the Ramsey AC121 power
supply! Oh, did we forget anything? Yep, we managed to keep the cost
the same as the old unregulated AC125 of the past! It just doesn't get
any better than that!
AC121 12VDC/1A Power Supply, 100-240VAC Green Level-V
$9.95
Worldwide input, 100-240VAC, 50-60 Hz!
Regulated output12VDC, 1 Amp, 12 Watts!
2.1mm x 5.5mm center plus DC connector
DUAL ferrite cores for RF and EMI suppression!
Approved
Green
Level-V efficiency!
Used with most of our kits requiring 12VDC!
The perfect universal 12VDC power for all of
your existing equipment and circuits!
Replaces our previous AC125 power supply
Go Green, Be Efficient... Read All This Once!
100-240VAC to 12VDC 1Amp
When you have some serious equipment to power, the
DC input is frequently 18VDC. This holds true for high
power audio amplifiers, high voltage converters, and other
high performance gear. This is also the required spec for
Ramsey UAM series audio amplifier kits.
The SPS18 provides 18VDC at a healthy 2.2 amps. The AC input covers a wide range of
100-240VAC at 50-60Hz, making it compatible throughout the world. The SPS183 is
similar to the SPS18 except it provides a heavier current output of 3.3 amps for those
extreme projects you may have! Both power supplies meet Level-V efficiency standards.
SPS18 18VDC/2.2A Power Supply, 90-264VAC Green Level-V $39.95
SPS183 18VDC/3.3A Power Supply, 90-264VAC Green Level-V $59.95
Worldwide input, 100-240VAC, 50-60 Hz!
Regulated output 18VDC, 2.2A or 3.3A
2.1mm x 5.5mm center plus DC connector
Approved Green Level-V efficiency!
Grounded AC input and cable
For The Extreme Gear!
100-240VAC to 18VDC
While the bulk of equipment requires a DC power input, there are certain designs that
require 12 volts inputl... but AC instead of DC. Frequently AC line frequency is required
in the circuit design, or there is built-in voltage doubler to derive plus and minus oper-
ating voltages for the circuit.
Ramsey products that require 12VAC are the SM100, K8099, and QLRD ring downs. A
number of other consumer products also require 12VAC, and this is the perfect power
supply.
The PWR25 is the tried and true wallwart designed power supply that provides 12VAC
at half an amp (500mA). The input is standard 110/120VAC two prong.
PWR25 12VAC/500-mA Power Supply, 110/120VAC Input
$14.95
110/120VAC input, 12VAC output, 500mA!
2.1mm x 5.5mm x 12mm plug!
Standard wallwart design but AC!
When You Need AC Output!
120VAC to 12VAC 500mA
Well, we certainly don't want to bore you with all the details of Level-V efficiency levels,
going green, and the change in small power supplies this year… we already did that off
to your left! But we will talk about interchangeable AC plugs and worldwide compati-
bility!
Switching power supplies typically have a broad AC input range to cover various power
standards such as 100VAC, 110VAC, 120VAC, 230VAC, 240VAC, etc. Along with a wide
range input they also provide regulation, regardless of load, at the rated DC output.
When you travel out of the country with your laptop, your charger is typically a switcher,
and all you need is an AC plug adapter to match the country standard you are visiting.
Our AC121 12VDC switching power supply on the left is a great example, where it is
configured to plug into US outlets (NEMA15) outlets, but you can connect it to any
power input with a suitable plug adapter.
What if you need a power supply for your specific country? What if you don't have, or
don't want to bother finding the correct plug adapter? What if you're on a cruise and
you don't want to "rent" one from the purser for $49 per day? The answer… you sim-
ply buy a power supply with interchangeable AC plug blades! It's that simple.
Our PS29 is a brand new regulated switching supply that provides 12VDC at a higher
current of 1.25 amps. Like our AC121, it meets Level-V efficiency standards and is com-
patible in all countries that currently require Level-V. This efficiency level also means
that you have gone green, and are saving not only electricity but money! But it doesn't
stop there. The power supply includes 4 interchangeable AC plug sets that make the
supply compatible with most country outlet standards! All you do is snap the required
AC blade onto the front of the power supply, and you can plug it directly into the wall
outlet, regardless of the voltage or frequency! The AC power standards that are includ-
ed with the 4 plug sets are:
NEMA 1-15
US, Canada, Mexico, Central America, Japan
CEE7/16
Europlug, most countries in Europe other than UK, India
BS1363
UK, Ireland, Cyprus, Malta, Malaysia, Singapore, Hong Kong
AS3112
Australia, New Zealand, Argentina
Just like our AC121, this worldwide 12VDC power supply is perfect to power the bulk of
our hobby kits requiring 12 volts and also makes a perfect universal worldwide 12VDC
power supply with its 1.25 amp output and the standard 2.1mm plug. We have also
included not one, but two ferrite cores on the output cable for maximum RF and EMI
suppression. If you're looking for a 12 volt supply with decent current that you can use
virtually anywhere, this is it! If you’re looking for 15VDC output at 1.25A, checkout our
PS27 worldwide power supply below!
PS29 12VDC/1.2A Power Supply, Worldwide, Green Level-V $19.95
Worldwide input, 100-240VAC, 50-60 Hz!
Regulated output 12VDC, 1.25 Amp, 15W!
Worldwide interchangeable plug set!
2.1mm x 5.5mm center plus DC connector
DUAL ferite cores for RF and EMI
suppression!
Approved
Green
Level-V efficiency!
Worldwide plug-in supply that can be
used with most 12VDC Ramsey kits
The perfect worldwide plug-in 12VDC
regulated higer current power supply
Go Green, Be Compliant, Worldwide!
100-240VAC to 12VDC 1.25A
Our PS27 is a brand new regulated switching supply that provides 15VDC at a higher
current of 1.25 amps. Like our AC121 and PS29, it meets Level-V efficiency standards
and is compatible in all countries that currently require Level-V. The power supply
includes 4 interchangeable AC plug sets that make the supply compatible with most
country outlet standards! All you do is snap the required AC blade onto the front of the
power supply, and you can plug it directly into the wall outlet, regardless of the voltage
or frequency! The AC power standards that are included with the 4 plug sets are the
same as the PS29 above.
Dual ferrite cores on the output cable for maximum RF and EMI suppression. If you're
looking for a great 15VDC worldwide power supply for your equipment, you can’t go
wrong with the PS27!
PS27 15VDC/1.2A Power Supply, Worldwide, Green Level-V $17.95
Worldwide input, 100-240VAC, 50-60 Hz!
Regulated output 15VDC, 1.25 Amp, 18W!
Worldwide interchangeable plug set!
2.1mm x 5.5mm center plus DC connector
DUAL ferrite cores for RF and EMI
suppression!
Approved
Green
Level-V efficiency!
The perfect worldwide plug-in 15VDC
regulated higer current power supply
When You Need 15 Volts Worldwide!
100-240VAC to 15VDC 1.25A
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