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Current WKUSB PCB Revision is D
K1EL is offering two kits based on the WK2 chip, WKUSB and WKUSB-HV. Both are identical in function with the exception that WKUSB-HV can key virtually any transceiver or transmitter, even those with grid block keying. Note: A WKUSB-HV is required if the keying voltage of your transceiver is 3.3V or less, this is easily measured with a voltmeter. Both kits includes enclosure, pushbuttons, PC board, and all parts including a USB cable. There is one surface mount part which is pre-soldered to the PCB. All you need to provide are keying cables from WKUSB to your transceiver.
Here's a keying cable, RCA to 1/4 inch. This is a mono cable and not suitable for xcvrs that require a stereo cable with no ring connection.
If you need solid state relays to upgrade your WKUSB, please contact K1EL by email.