[R-390] 390 RF Deck Replacing After Removal

[Tisha Hayes]

Fiddling with that switch on the bottom of the RF deck is the biggest PITA!

I had problems with one of my receivers where I had intermittent
performance on only some of the bands; The radio would go mostly deaf in 1
MHz positions and it was intermittently happening. The problem boiled down
to imperfect connections on that switch.

It was frustrating because you need to do a major disassembly to get to it
each time you make an adjustment and whatever adjustment you made was not
always certain to fix the issue. You could get it to disappear on one band;
only to have it now crop up in a different band.

It took a couple of days to resolve and I had to just step away from the
radio a half-dozen times out of frustration; I wanted to toss the entire
receiver out of the second story window and down in to the yard, where I
could dig a deep hole and bury the radio.

I guess that the next level of frustration I could ever possibly get would
be in trying to adjust the compensator disk on the PTO. Thank goodness I
had good PTO's with linearity!

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Tuning racks, stagger tuning the IF, finding the right tube for each
socket... child's play when compared to that switch.

Years of therapy have gotten me over the trauma, but I will not even lift
up one of the spare RF decks and look at the underside... That would give
me flashbacks.

*Ms. Tisha Hayes, AA4HA*