Midnight  Touch Key

Add a Touch Key to your Ultimate Keyer!  With this inexpensive "MTK option" you can add it to the MUK case or to any other enclosure of your liking.  Just tap the brass mounting nuts of the little MTK board and the capacitance of your fingers serve to actuate the Dit and Dah inputs of your keyer just as well as when using a conventional external paddle.  Nice for POTA/SOA operation! 
(NOTE: The optional MTK kit also uses SMT components. See photos to the left.)

The Midnight Touch Key (MTK) is designed for use with the MUK but will work with most any modern keyer. The MTK consists of two assemblies:
     • PCBA containing the active components; and
     • Interface Cable to connect to the connectors on the MUK's rear panel assembly.
Plus the mounting hardware which also serves as the input electrodes (touch paddles).

Touch Keyer Schematic

Touch Key Demo Video ...

MTK Assembly Instructions

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