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  #1  
Old 07-05-2021, 09:49 AM
Donovan Drums Donovan Drums is offline
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Default Supraphonic Corrosion Question

I recently picked up a 1971 Supraphonic. It's in overall very good condition with what I would say is minimal pitting on the shell.

My issue is with the areas of corrosion along the bearing edges that creates rough spots that will be in contact with the heads.

What is the opinion of the community on dealing with this issue?
I have attached a representative photo (not very good quality I'm afraid.)

Any advice is appreciated!
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  #2  
Old 07-05-2021, 10:27 AM
DRUMR69 DRUMR69 is offline
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Default Re: Supraphonic Corrosion Question

I have several with this issue and don't think it affects the sound fortunately.
I guess you could sand lightly if it is sharp and flaking but I have never done that.

Wayne
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Old 07-05-2021, 10:48 AM
Donovan Drums Donovan Drums is offline
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Default Re: Supraphonic Corrosion Question

Quote:
Originally Posted by DRUMR69 View Post
I have several with this issue and don't think it affects the sound fortunately.
I guess you could sand lightly if it is sharp and flaking but I have never done that.

Wayne
Thanks Wayne.
I was wondering the effect of these barbs on the heads being drawn tightly against the bearing edge?
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Old 07-05-2021, 02:32 PM
Hoppy Hoppy is offline
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Default Re: Supraphonic Corrosion Question

Quote:
Originally Posted by Donovan Drums View Post
Thanks Wayne.
I was wondering the effect of these barbs on the heads being drawn tightly against the bearing edge?
The head material should be able to form/deform around those minor irregularities. If they are significant or sharp, and you want to take them down a bit without using sandpaper, I would suggest using a drum head that is slightly larger on the drums and rotate it with clockwise/counterclockwise motions. Using a larger head is just to make sure the drum head hoop isn't going to contact the side of the shell, but still make good contact with the bearing edge.
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Old 07-06-2021, 11:31 AM
Donovan Drums Donovan Drums is offline
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Default Re: Supraphonic Corrosion Question

I'm thinking of using a super-fine sanding drum on my Dremel and just hit the worst areas lightly!

Thanks for the ideas guys. It's appreciated!
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