Electronic telegraph key based on capacitance sensors for KX2 and KX3 Elecraft transceivers.

So here they are! Capacitive CW touch key for KX2 or KX3.

This is the second version.
The first version did not stand the test. With a nearby transmitter, interference was induced. The device gave false signals. I reworked the circuit of the device. I also redid the Board layout. An active protective circuit has been added. Now the device can withstand the high-frequency voltage of my 1 kW amplifier with a bad SWR. 

Advantages of the device:
- no mechanical moving parts,
- does not need adjustment,
- not afraid of dirt,
- speed depends only on the speed of your fingers,
- silent,
- consumes very little power.

Disadvantages of the device:
- you can't work with gloves on.


Video of the device can be viewed on Youtube.

I'll send you the key fully assembled and ready to go. Also included will be 2 bolts for mounting. No modification of the transceiver is required.

You can buy the key for $40 with free shipping. Write me or click the button below. Please provide your exact mailing address and name.