Power is supplied through a 5mm/2.5mm power jack, like the UKA-3 and MK-1. An RCA phono jack is included for the keying output to the transmitter or amplifier. All parts are thru-hole PCB mount, no SMT parts. This totally silent solid state relay is rated for a whopping 400V DC, at 120 mA! Use it to key your tube amp from a solid state rig, or keep that high voltage off your straight key - no more getting zapped when you accidentally touch the wrong part of the key! Use this to key nearly any solid state, grid-block or even cathode keyed rig transmitter, transceiver or amplifier. ![]() This is for the BUILT and TESTED version As featured in the 2008 ARRL Handbook for Radio Communications! Keyer to transmitter interfaceĪnti-shock key to rig interface for "boat anchors"
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