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A Reason to NOT Epoxy Knobs

This receiver is an absolute nightmare to work on. The worst rats nest I've ever encountered! I do not envy your upcoming task. Just thinking about it makes me want to get out of this hobby altogether.

That's my motivational speech for you. ;)
 
Thank you all for the well-wishes. Changing just the Speaker selection rotary switch was a humbling experience that I may wait to on changing the other rotary switch --- it's a monster, with 5 wafers and who knows how many connections. Has anybody changed that (or one like it) before? An alternative to unsoldering and soldering each connector is to cut the wires from the in-place switch and then splice in the new (which is still in the defunkt unit). Just a question... As for right now, the Function switch, while loose, is working okay. After last night, I need an aspirin..
 
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vinylly, I read and appreciated your idea of revisiting how to take off the knobs. Last night ( when I work on replacing a rotary switch) I did a terrible job of using a small bit to drill a pilot hole down the center of the knob. Afterward, I used a larger bit, then a still larger bit. The next thing was unbelieveable---the knob spun so rapidly on the shaft and flew off. One half of the split shaft came off, still epoxied to the plastic knob. Fortunately the other half --or more accurately, more than half--- was enough to work with that I filed it and reshaped it. The shaft was strong enough to hold the new knob tightly enough. I can only deduce that the epoxy is so strong that whether I drill or I crush the knob, the split shaft will most likely get damaged. Any ideas are still most welcome! I have one more knob to remove (from the Function selector rotary switch).
 
Hang in there MyHerseyIsMe, we're all pulling for you to save this fine receiver. You might want to revisit my idea to use a plug cutter or core drill which will leave the center and shaft unmolested. From there it just patience filing and sanding down to the shaft.
 
As I mentioned previously (must seem like an eternity to you), I've had good luck drilling the center with a 1/4" drill, then splitting the balance off with a large set of dykes. A soldering iron through the hole may heat the shaft enough to loosen things up a bit too. Then give her the twin sppons or dykes. (maybe nut splitter?)

You have more glue there than I ever had to deal with though.

Glad to hear you've got it on the run! Hang in there.

Scott
 
Thanks, elcoholic, for your encouragement! When my hand holding the soldering pencil starts shaking as I go into that rat's nest of wire, I will be fortified of your words of 'hang in there'!!!! That's a trip (showing my 1969 phraseology) to get into those circuits.
Ands my thanks to you, Scott, for your words! I left out in my retelling what happened when I went in with the drill (I believe it was a 1/16" bit). I was holding onto the knob with a pair of vise grips. I changed bits to a larger size and WHAM! The knob, a part of the shaft and my pride flew away. On the other knob that remains (the one with the 5 wafers and thousands of wires connecting it) I will try a nut splitter---something from my car repair days.

As for right now, I'll slip on a nice disc, turn on the R-1050, and listen and relax.........
 
I'm still floatin' on air, audiobiker! Thanks for the congrats. It's 98 F degrees outside, but my Luxman is cooooooooool and I'm slowing down and being coooooool.
 
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