[Elecraft] K2 Keying mod Questions

[Ken Miller K6CTW]

All,

Now that I want to add some power to the K2 so that it could become a full backup station (instead of just my QRP contesting rig) I find that I may need to do some additional things to the rig. My K2 (serial # 455) does have most of the mods in it but one that I didn't do was the keying mod.  However, when I went to order it the other day I found that mod is no longer available from Elecraft. 

Is there a replacement modification that does the same thing that uses different parts?

The reason I ask about the keying mod is that it was noted that it was needed when using the K2's 100 watt amp and I was wondering if that still holds for the latest version of the K2 amp and also for the KXPA100?

Also, I don't think I need to do the mod to the keying before I upgrade the firmware.  Am I correct in that?

Thanks in advance for any ideas/suggestions/etc.

73 - Ken Miller, K6CTW