Friday, October 22, 2010

MFJ-412 Iambic Keyer Module

This latest addition to my MFJ 9040 CW QRP transceiver adds an electronic keyer with speed adjustable over a 3 to 66 word per minute range.  The board simply plugs into the rig occupying the rear left corner of the chassis.  The only modification required was to elongate the screw hole in the keyer's board a little so it lined up better with the stud already in place on the main board.  I will function test the keyer soon and hope to put the little rig on the air this weekend.


  1. Being close to the fridge, does that boast the power at the key or out of the rig?

  2. Norm, I shouldn't have to remind you of that essential piece of amateur radio gear- the ham sandwich. :)

  3. Here in the WEST, the ham sandwich has been replaced by the TACO !

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