[78-L] Speed vs. Frequency

[Doug Pomeroy]

> Message: 10
> Date: Sun, 14 Feb 2010 19:37:22 -0800 (PST)
> From: DAVID BURNHAM <burnhamd at rogers.com>
> Subject: [78-L] Speed vs. Frequency
> To: 78-L at 78online.com
> Message-ID: <480795.34861.qm at web88105.mail.re2.yahoo.com>
> Content-Type: text/plain; charset=iso-8859-1


> So all of these proportions being the case, I still believe a 3 mil  
> groove would have to be recorded at 100 rpm to match the sound  
> quality of the LP.


I must have missed some earlier explanation.

How was this conclusion arrived at?

DOug