Welcome to theHarbach Electronics, LLC Website SOLID-STATE CONVERSION KIT FOR THE COLLINS 516F-2 POWER SUPPLY (SS-516) In response to your requests, I am reviving the SS-516 solid-state conversion kit for the Collins 516F-2 power supply. The kit is in final testing for production. The beta units are in the field and as soon as the kit has completed testing, it will be ready for sale. The kit includes solid-state replacements for the 5R4 and 5U4 tubes and other associated components to upgrade the power supply. Step-by-step instructions will also be included. 73, Jeff W8CQ |