How do I connect my CW Morse 24 Series PCB Straight Key with a 3.5mm TRS AUX cable?

[ElenaLee]

Connecting your CW Morse 24 Series PCB Straight Key using a standard 3.5mm TRS stereo AUX cable is straightforward. Here's a helpful guide:

1. Wiring Configuration: Note that some keys, oscillators, or software setups may require a jumper between the RING and SLEEVE connections of the TRS cable. This configuration enables the use of the straight key (which is essentially mono) with a stereo cable.

2. Key Cleaning: Before connecting, ensure your key is clean. Use a dry paintbrush or a can of compressed air to remove any dust or debris.

3. Contact Maintenance: If the key contacts need cleaning, use a small strip of 220-grit sandpaper or a paper nail file. Gently close the contacts and carefully pull the sandpaper through to remove any dirt or oxidation. Flip the sandpaper and repeat to ensure both contacts are clean and free of any obstructions.

By following these steps, you'll be able to successfully connect your CW Morse 24 Series PCB Straight Key and be ready to enjoy Morse code communication.