[Amps] New W7RY Soft Key Module

Jim W7RY jimw7ry at gmail.com
Fri Mar 31 21:54:26 EDT 2017

Yet another shameless plug....

I also have a new circuit board only which is a soft key module for the SB220 and other + voltage keyed amplifiers with a 120 volt DC relay power supply like the Kenwood TL-922.

- Uses common easy to find parts and not an expensive MOSFET design. The keying voltage is regulated so no possibility of high voltage appearing on the keying line to your radio.

- Parts from Mouser are less than $2.00!  If you have the parts in your junk box, you don’t need to order them!  

Link to the Mouser parts list: http://www.mouser.com/ProjectManager/ProjectDetail.aspx?AccessID=a0a6d77a8c

Link to pictures: http://s900.photobucket.com/user/w7ry/library/W7RY%20Heathkit%20Soft%20Key%20Interface%20Circuit%20Board

$9.00 shipped by First Class Mail

Thanks and 73!
Jim W7RY

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