[78-L] Record playing speed

[Steven C. Barr]

----- Original Message ----- 
From: "Michael Biel" <mbiel at mbiel.com>
> Steven C. Barr wrote:
>> Note also there were two different cylinder speeds...one for the early 
>> two-minute
>> cylinders, and another lor the later four-minute type...!
> This was brought up in other posts already but Steve's wording might 
> confuse some people -- and Steve might be confused himself.  The speeds 
> below 160 were used during the brown wax years in the 1890s.  By around 
> 1900 or 01, it was brought up to 160 where it stayed thru the 2 minute 
> Gold Moulds, and the 4 minute Amberols and Blue Amberols.  The 
> rotational speed did not change between the 2 and 4 minute cylinders, 
> only the grooving.  It went from 100 threads per inch to 200.
> 
Thanxes muchly...I actually didn't know this...and had always assumed that
the "4-minte adaptor sets" included a speed difference as well...!

Then again, I don't collect cylinders...?!

...stevenc