[Elecraft] Power pole connection comes loose

[Greg Troxel]

  I was working cw with about 95 watts when my K3 shut down.  I checked the
  power pole connection and it had come slightly loose and was pretty warm,
  so I let it cool and then re inserted it to the radio, and this seems to
  work OK.  I've seen some comments about how to make this a more positive
  connection.  I don't see the roll pin hole on the radio connector?

The other powerpole issue is using a cheap crimp tool, where the pin can
be bent.  While I concur 100% with Don's advice about the pins clicking
over the lower pieces, even with them in place they can make bad contact
if they are bent.