[Collins] SUCCESS! R-390 Crystal Oven Issues

[K3PID]

OK, Once I knew that there were TWO boxes and the inner one was held on by spring clips, I was able to pull the heater coil box off ( wit a little prying around the edges ) to expose the crystals.  It’s a mess because the black foam insulation sheet has deteriorated and has become goo on top of all the crystals but now I can clean it up and replace the two in question.

THANKS FOR ALL THE HELP AND SUGGESTIONS!

Ron H K3PID