Four State QRP Group

Four State

4S-Dummy Load
4S-Dummy Load

Designed by Dave Cripe, NMØS
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Kitted and Offered For Sale By The Four State QRP Group

Designed by Dave Cripe, NMØS, the 4S-Dummy Load is a simple kit that employs the use of large SMT parts and some LEDs to provide a dummy load device for up to 10W output. The power-indicator LEDs indicate output power in a cascade method. This kit is useful for showing if your transmitter is making power - or not! It should be a commonly-used test device on the QRP builder's bench.

First time builders please note: For builders new to surface-mount construction, this is an ideal beginners kit. The extra large 2512-sized SMT parts used in this kit make it easy and a great learning experience as well.

Specifications and Design Features
Frequency range:  Works with all Amateur Radio bands
Power requirements:  No external power needed
Maximum output power:  10 Watts
Power Indicator LEDs:  0.5w, 1w, 2w, 5w
PCB:  High Quality, silk screened printed circuit board.

Assembly Manual, with Schematic, Parts List, and Photos
Parts and Schematic
Electronics 2000's Excellent Capacitor Identification Page  Posted with permission.
Electronics 2000's Excellent Resistor Code Graphic Calculator  Posted with permission.

Ordering Information:
The cost of this kit is $12 plus shipping. The drop down menu items below include shipping costs.
DX Buyers - DX shipping has become extremely volatile and unreliable. The 4SQRP Board of Directors have suspended DX sales.
Choose US Order

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If paying by check or money order (US dollars only) please make it out to "Four State QRP Group" and send to:
Four State QRP Group
Ron Potter AG1P
PO Box 1117
Fernley, NV 89408

Due to high bank processing fees, we can no longer accept Canadian Money Orders.

The 4S-Dummy Load is carefully kitted and shipped by Dave Cripe, NMØS
Please direct shipping, kit, and part related questions to Dave
All proceeds are applied toward funding OzarkCon.   Thank you for supporting The Four State QRP Group.
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