Thanks to circuit design help from K9JB, and after review by Elecraft Chief Engineer, N6KR, I'm now able to provide a new plugin module for the Elecraft K3 and K4 that I call the "K-ON".
When connected to the rig's ACC jack directly, or via a 15-pin Y-cable or Y-BOX <https://bit.ly/Y-BOX>, the rig will automatically power up whenever the rig's DC power supply powers up. This could be useful to remote stations with Internet-accessible AC power strips. I also find it useful at my home station where I use a "Master Power On" switch that powers everything up automatically, including two K4Ds. If you already have a Y-BOX with an unused connector, the K-ON plugs right in. I'm also including the same circuit inside the new Y-BOX v4.0 (so the plugin is not needed). The "Auto On" feature of Y-BOX v4.0 can be enabled or disabled by a shortened RCA plug, as shown in the third demo video on the website. For photos, demo videos, and ordering one or more K-ON plugins, please visit the new website. https://bit.ly/N6TV-KON Unlike some solutions that have previously been suggested, such as connecting a big capacitor to ACC Pin 8, connecting the K-ON plugin has no surprise side effects. The rig's POWER switch and PS0; commands continue to function normally, so the rig shuts down properly while the module remains connected, as shown in the videos. You can still connect a RemoteRig box in parallel with no issues either; it will still function normally. 73, Bob, N6TV https://bit.ly/N6TV-KON https://bit.ly/Y-BOX ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:Elecraft@mailman.qth.net This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to arch...@mail-archive.com
