KH1 CW Key Kit
Written Assembly Instructions (English)
YouTube Video Assembly Instructions (PENDING)
Quansheng CW Adaptors
CEC Adapter — Schematic & Firmware Compatibility
Explains resistor values, how the adapter is wired for CEC firmware, and what to do if you are using NR7Y firmware (set cable type to CEC Cable (Reversed)).
How to Identify Your Quansheng Radio Version
Not sure whether you have a UV-K5 Version 1, Version 3, or UV-K1? This page walks you through checking the label under your radio’s battery to find out which CW adaptor you need.