[78-L] constant velocity records, was Value of 78's

[David Lennick]

I'd forgotten about constant velocity discs used during wartime..mentioned here.
http://www.lostmag.com/issue3/memory.php

dl

Graeme Jaye wrote:
> Hi Robert
> 
> On 21/03/2009 you wrote;
> 
> RMBJ> Why did a few companies make CV discs anyway? Was it playing time or
> RMBJ> something else?
> 
> Something else.  With normal CAV discs, the linear speed of the groove
> gets slower towards the centre of the disc, this results in a poorer
> frequency response.
> 
> Graeme Jaye
> 
> graemejaye at iname.com
> 
> Audio Restoration and Location Sound Recording
> http://www.personal-cd.com
> 
> Hobby Musician - find some of my stuff here