Ebay : Grampian Type C Cutterhead

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Sillitoe
Posts: 421
Joined: Wed Apr 30, 2014 8:30 pm

Ebay : Grampian Type C Cutterhead

Post: # 34141Unread post Sillitoe
Sun Mar 15, 2015 4:20 am

http://www.ebay.com/itm/Rare-Vintage-Grampian-Type-C-Magnetic-Cutterhead-Recording-S-N-1146-/231504003610?pt=LH_DefaultDomain_0&hash=item35e6b6c21a
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ROLANDJAYS
Posts: 287
Joined: Sun Apr 14, 2013 3:48 am

Re: Grampian Type C

Post: # 34145Unread post ROLANDJAYS
Sun Mar 15, 2015 10:02 am

wow look at all that rust .. !!
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rsimms3
Posts: 427
Joined: Thu Mar 14, 2013 10:01 am

Re: Grampian Type C

Post: # 34149Unread post rsimms3
Sun Mar 15, 2015 4:16 pm

Looks more like red house paint to me. Or maybe ketchup.
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markrob
Posts: 1643
Joined: Wed Nov 28, 2007 1:14 am
Location: Philadelphia Area

Re: Grampian Type C

Post: # 34150Unread post markrob
Sun Mar 15, 2015 5:01 pm

Hi,

Looks to me like Glyptal. I suspect he had some issues with the Silicone damping fluid leaking and used the Glyptal paint to seal the head.

http://www.eastwood.com/glyptal-red-enamel-set.html

Mark
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studiorp
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Re: Grampian Type C

Post: # 34152Unread post studiorp
Sun Mar 15, 2015 5:40 pm

But all grampian have inside silicone fluid, type c too ?
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markrob
Posts: 1643
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Location: Philadelphia Area

Re: Grampian Type C

Post: # 34155Unread post markrob
Sun Mar 15, 2015 8:05 pm

Hi,

I think so. That was one of the innovations of this design. Instead of using a rubber type material for damping, they went with the Silicone oil. Supposedly better stability over time and temperature. I believe the fill hole is the screw on the top of the head in the picture.

Mark
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audiocarver
Posts: 97
Joined: Thu Mar 23, 2006 11:35 am
Location: Wausau, WI USA

Re: Ebay : Grampian Type C Cutterhead

Post: # 34181Unread post audiocarver
Tue Mar 17, 2015 10:34 am

Hi,

Yup, at least for the type D head, you would use 100cSt viscosity fluid and about 10 to 20 drops in the top fill screw hole.
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