Viva tonal portable ID and restoration help needed

[anchorman]

I’d like to clean up some minor issues the diaphragm has, and also try out some other materials just for laughs. Hopefully I can figure how to get it loose.

[Curt A]

I’d like to clean up some minor issues the diaphragm has, and also try out some other materials just for laughs. Hopefully I can figure how to get it loose.

I agree with Jerry... there's no reason to try to take it apart, you might end up damaging it beyond repair. If you want to straighten out the edge, no problem, but a home made design diaphragm will most likely fall short of the original. It looks like the needle bar may be riveted to the diaphragm.

[anchorman]

I’d like to clean up some minor issues the diaphragm has, and also try out some other materials just for laughs. Hopefully I can figure how to get it loose.

I agree with Jerry... there's no reason to try to take it apart, you might end up damaging it beyond repair. If you want to straighten out the edge, no problem, but a home made design diaphragm will most likely fall short of the original. It looks like the needle bar may be riveted to the diaphragm.

I have some fabrication skills beyond the average tinkerer... I may just make another needle bar instead of trying to take this one off if it comes to that.

[Curt A]

"I have some fabrication skills beyond the average tinkerer... I may just make another needle bar instead of trying to take this one off if it comes to that."

OK, I guess if you can make a needle bar you don't need any help restoring this...

[anchorman]

There’s plenty I don’t know... but certain things I’ve done similar to it that I feel it wouldn’t be unreachable. I have some experience doing jewelry and metal fabrication large and small, dabbled with clocks and watches. These machines have their own quirks, so it’s very nice to learn from the experiences of others and save some needless heartache along the way!

"I have some fabrication skills beyond the average tinkerer... I may just make another needle bar instead of trying to take this one off if it comes to that."

OK, I guess if you can make a needle bar you don't need any help restoring this...

[anchorman]

By the way, I don’t have much experience with pot metal failure - the piece from the back of this reproducer looks so uniformly bent along a single axis that it really seems like damage from abuse rather than damage from deterioration. On the lookout for alternatives to replace it with.

[JerryVan]

By the way, I don’t have much experience with pot metal failure - the piece from the back of this reproducer looks so uniformly bent along a single axis that it really seems like damage from abuse rather than damage from deterioration. On the lookout for alternatives to replace it with.

Trust me, it's pot metal deterioration.