Introducing the "K-ON"plug-in module for the Elecraft K3, K4, or Y-BOX
Automatically powers up the rig with the station Power Supply
Ideal for remote stations, or stations with a "Master Power On" switch

Plug and Play DE-15 connector for K3 or K4 ACC jack, or Y-BOX
Convenient, simple, passive circuit using the rig's PWR ON pin
The rig's POWER switch and the Elecraft "shutown" command (PS0;) will still work normally

See demonstration videos and "Add to Cart" button below

Read the eHam.net reviews here

How to use (demo videos)

• If K3 or K4 ACC jack not in use, connect plugin directly to K3 or K4 ACC jack as shown below:
  

• If you already have a Y-BOX v2.0 or v3.0, connect to any available jack on Y-BOX (except the jack labeled "To AMP AUX" jack):
  

• If the ACC jack is already occupied, add a Y-Cable to your order, or order a Y-BOX.

• The new Y-BOX v4.0 has the Auto On circuit built-in, so the K-ON plugin and Y-Cable are not needed, as demonstrated below:
  

Features

• Choice of housing and thumbscrew type
• Optional 15-pin Y-Cable with all 15-pins wired, includes locking hardware
• Plug and Play
• Compatible with:
  • Elecraft AUX cable
  • Band Data cable
  • FSK Keying cable
  • microHAM ACC cable
  • Remote Rig I/O cable
  • S-BOX Power On circuit for RemoteHams RCForb

Limited quantities ** IN STOCK **

To order from N6TV, select either K-ON Only -or- K-ON Plus Y-Cable, select housing type, enter callsign, then click only ONE of the two Add to Cart buttons to be redirected to PayPal

After clicking Add to Cart, if you are unable to log in to PayPal using the Checkout button, please try logging in to PayPal first, or contact me via email, list your preferences, and I will send a PayPal invoice.

Domestic shipping will be added at check-out.

For customers outside of the USA, please contact me via email instead of using the Add to Cart buttons below.

-OR-

If you don't have a PayPal account, you may pay via credit card when prompted.

30-day money back guarantee if returned in original condition. Buyer pays return shipping costs.

73,
Bob, N6TV

Last Update: 9 August 2026 19:05 UTC