jbivy
09-08-2011, 10:25 PM
I picked up the solid state chassis and turn table out of a 1964 nordmende console stereo. The speakers were already robbed from it, but it played a few years back. But the tuner is now frozen. Its encased in a small stamped together steel box. Im wondering whats the best way to open this darn thing so i can get it unfrozen. Its an interesting chassis being multi band and set up for six speakers, might look good in a custom wood case.
So anyone here experience this problem before, how did you handle it?
bgadow
09-08-2011, 10:54 PM
Interesting, earlier today I was reading an old, old thread over on the ARF and guys were talking about frozen tuners on German sets. They were using a propane torch to heat them up (the shaft, I guess) but in this case I don't know that you would want to try something like that without getting that cover out of the way. Guess you could try a BIG soldering iron, held to the shaft for many minutes.
jbivy
09-09-2011, 05:00 PM
darn, i posted this in the wrong section. Sorry guys.
Ive a micro torch, one of those harbor freight "pen torches".. id still feel odd using it though. I guess if i screw it up, i can modify another to work on it, maybe thats not out of my skill level. It only has three wires leading out of it.
Eric H
09-09-2011, 06:30 PM
It's probably just hardened grease keeping it from turning, I think some heat might do the trick as long as it's not too much, that would melt plastic parts if applicable.
A mini torch would do it but it could also damage it very quickly.
Apply heat to the metal shaft and gently rock it back and forth.
If you can get to both ends of the shaft I'd try that too.
A soldering iron would be the safer bet, I melted an Aluminum pulley from a Projector using a Mini Torch, they are very hot!
Electronic M
09-09-2011, 06:51 PM
You could try leaving some WD-40 on the bearings for a few hours and then apply some elbow-greese.
Reece
09-09-2011, 06:57 PM
If the shaft goes through a bushing that you can get at, similar to the way a volume control shaft goes through a threaded brass bushing, you want to heat the bushing rather than the shaft. This would expand the bushing making the clearance between it and the shaft increase.
jbivy
09-12-2011, 10:09 AM
the shaft goes through a steel bushing. I heated it with a soldering iron for a good ten minutes, tried it and nothing. Im semi afraid of damaging this further but.. i think i can just replace it with another unit if i do destroy it.