03-20-2008, 08:50 AM
Hi Randal,
Yes, I am planning to do a full recap on this 90 chassis. Chuck's site has nice tutorials on how to restore/restuff the Mershon caps and bakelite blocks.
How about the tone switch? What is the best way to replace the caps without destroying it? It looks to be bakelite also. Would I use the same methods as the bakelite blocks? Heat with the heat gun to remove caps and tar block?
Also, what about the volume control? This one is not scratchy, but is a bit stiff. If it is safe, I will lube it with WD-40. I use that on most of my 30's and 40's sets with good success.
I think my biggest problem will be to find a useable speaker. If I could find one in need of repair I would try that. I think the model 20 speakers have a bolt on field coil. I have a homebrew coil winding machine and have rewound field coils before.
Coil Winder
[Image: http://i135.photobucket.com/albums/q136/...inder1.jpg]
I think I can do the recone job myself also. I can get the knobs and escutcheon from Larry Bordonero and the cabinet from Dick Oliver. So I think it would be possible to piece it together, if I do not find a junker.
Regards,
Ed
Yes, I am planning to do a full recap on this 90 chassis. Chuck's site has nice tutorials on how to restore/restuff the Mershon caps and bakelite blocks.
How about the tone switch? What is the best way to replace the caps without destroying it? It looks to be bakelite also. Would I use the same methods as the bakelite blocks? Heat with the heat gun to remove caps and tar block?
Also, what about the volume control? This one is not scratchy, but is a bit stiff. If it is safe, I will lube it with WD-40. I use that on most of my 30's and 40's sets with good success.
I think my biggest problem will be to find a useable speaker. If I could find one in need of repair I would try that. I think the model 20 speakers have a bolt on field coil. I have a homebrew coil winding machine and have rewound field coils before.
Coil Winder
[Image: http://i135.photobucket.com/albums/q136/...inder1.jpg]
I think I can do the recone job myself also. I can get the knobs and escutcheon from Larry Bordonero and the cabinet from Dick Oliver. So I think it would be possible to piece it together, if I do not find a junker.
Regards,
Ed
