Four State QRP Group

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A Companion Transmitter
for the SS-40 Receiver
Designed by Jim Kortge, K8IQY

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This kit has been retired. Thank you for your support

Kitted and Offered For Sale By The Four State QRP Group        

This well designed transmitter is a companion to K8IQY's highly regarded SS-40 receiver. It is designed to be placed above the SS-40 board as depicted in this picture of the prototype. It outputs up to 9 watts and uses a hefty, cool running MOSFET as a final. First time builders please note: This kit is not difficult to build. All parts are through hole lead parts.
Note: Pse post all technical questions to the SS-40TX Yahoo Group. Click here to go there.

Specifications and Design Features
RF Output: Adjustable up to 9 Watts
Voltage Required: 10-15 volts DC; 12-13.8 volts recommended
Current Required: ~ 900 milliamperes
Harmonics: ~55 dB below carrier; exceeds all current FCC regulations
Output Impedance: 50 Ohms
Stability: Matches SS-40 Receiver VXO Frequency Stability
Keying: Semi-QSK, limited by SS-40 mute recovery time

Assembly Manual
PC Board with part layout.
Parts List
Photo Page
Slotted Case Top Print Orientation STL File
Slotted Case Print Orientation STL File
Elecraft's Excellent Capacitor Identification Page  Posted with permission.
Electronics 2000 Resistor Code Graphic calculator  Posted with permission.

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