Why are Edison Diamond Discs So Thick?

[Dave D]

As the title asks, why are those things so thick? Other hill and dale records are not.
Dave D

[estott]

Edison wanted stability, no warping, and they had to stand up to the weight of his playing system.

[NEFaurora]

Rather than go into majorly detailed explanations of it here..probably more than can be typed, I highly suggest that you pick up one of the Frow Diamond Disc books listed below.. They are usually around $20.00 or so. More than reasonably priced. It will tell you more than you ever wanted to know about the Diamond Disc manufacturing process and how it came to be. See weblinks below:


Edison Diamond Disc Phonographs by George L. Frow (Original Hardcover Bound version)

http://www.ebay.com/itm/The-Edison-Disc ... SwyB9XDT4D

and

Edison Diamond Disc Phonographs by George L. Frow (Newer Updated Softcover Bound version of same book.)

http://www.ebay.com/itm/New-The-Edison- ... SwJkJWlBzm


)

Tony K.

Edison Collector/Restorer

[Dave D]

Edison wanted stability, no warping, and they had to stand up to the weight of his playing system.

Thanks, that is enough information for me.
Dave.

[Dave D]

Rather than go into majorly detailed explanations of it here..probably more than can be typed, I highly suggest that you pick up one of the Frow Diamond Disc books listed below.. They are usually around $20.00 or so. More than reasonably priced. It will tell you more than you ever wanted to know about the Diamond Disc manufacturing process and how it came to be. See weblinks below:


Edison Diamond Disc Phonographs by George L. Frow (Original Hardcover Bound version)

http://www.ebay.com/itm/The-Edison-Disc ... SwyB9XDT4D

and

Edison Diamond Disc Phonographs by George L. Frow (Newer Updated Softcover Bound version of same book.)

http://www.ebay.com/itm/New-The-Edison- ... SwJkJWlBzm


)

Tony K.

Edison Collector/Restorer

I have the Diamond Disc book,, but I don't recall any reason for the extreme thickness of them being given. Thanks!
Dave

[VintageTechnologies]

Edison studied Pathé's records to learn what not to do. Pathé records had a tendency to skip due to broad shallow grooves. Edison went with narrower, deeper grooves. A thick record guaranteed there would be no warping, something I appreciate today! Comparing the two systems now, I'd say Edison was right.

[Wolfe]

Edison wanted stability, no warping, and they had to stand up to the weight of his playing system.

Thanks, that is enough information for me.
Dave.

Buy the Frow books. Stop being a mooch.

[estott]

Edison wanted stability, no warping, and they had to stand up to the weight of his playing system.

Thanks, that is enough information for me.
Dave.

Buy the Frow books. Stop being a mooch.

Putting a price on information, are we?

[Lucius1958]

Edison studied Pathé's records to learn what not to do. Pathé records had a tendency to skip due to broad shallow grooves. Edison went with narrower, deeper grooves. A thick record guaranteed there would be no warping, something I appreciate today! Comparing the two systems now, I'd say Edison was right.

Except for when the discs are 'dished', and cause problems in playback, when the reproducer tops out and starts damaging the grooves...

Bill

[Dave D]

Edison studied Pathé's records to learn what not to do. Pathé records had a tendency to skip due to broad shallow grooves. Edison went with narrower, deeper grooves. A thick record guaranteed there would be no warping, something I appreciate today! Comparing the two systems now, I'd say Edison was right.

That is good to know, too. Thanks for your courteous response.
Dave D