Check Out the Spring Sale!

K2 Revision A to B Upgrade

The mod kits listed below will upgrade an existing, BUILT, Revision A (or Field Test Rev. XC) K2 to one equivalent to Revision B. (The revision number refers to the PC board revision.)

We recommend that you download the K2 A to B Upgrade Instructions to review all of the changes before deciding which mod kits to purchase, as some of them are optional, and you may have installed some of them previously.

  • BFOMDKT - K2 BFO Toroid & PLL Ref Osc Xtal Upgrade
  • E850093 - 10M BPF, VFO/ALC Mod Kit for the K2
  • XFILMDKT - Second Filter Upgrade 
  • FWK2MCIO - K2 MCU F/W Upgrade to 2.04; K2 IOC Upgrade to 1.09 
  • E850089 - Grill Cloth 
  • E850138 - K2 Temperature Compensated PLL Reference Upgrade 
  • K2ATOBKT - K2 Rev A to B upgrade parts: Remaining parts needed (after making the above mods) to upgrade your K2 from Rev A to Rev B. Includes K2 Revision A to B upgrade instructions. See the instructions for a list of parts. 


NOTE: If you have an UNBUILT Revision A K2 (s/n less than 3000) and wish to build it with new Rev B PC Boards, parts and manual, do not order the mod kits listed here. They only apply to existing Rev A K2s.

See K2 Revision B Component Upgrade Kit to order the K2BCOMPKT, F/W and Manual.