I can't say it's a common failure point... I've never personally seen/heard of one failing [in best part of 30 years around NSRs]. That's not to say someone else has seen one/a number fail. I don't recall ever seeing many, if any, posts on the forum here about it in the past though. (This is where an old forum member "Fontyyy" always came in handy before... he seemed to have a photographic memory for previous related topics he would link to where available, as the search function of phpBB has always been rather sketchy!)

I don't know of any other model that has a common part. I highly doubt it's NSR-specific, but having never needed to tinker, I've never been in the position to look for a substitute part I'm afraid.
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Andy.
NSR-WORLD.COM

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