[78-L] Groove spacing - groove width

[Mark Bardenwerper]

On 11/19/2016 4:53 AM, Kristjan Saag wrote:
> When recording went electric one of the consequences was the ability to
> avoid overcutting - it became easier to control loud signals. Thus
> groove spacing was affected: the number of grooves per inch or
> centimetre was increased, recording time per disc side could also be
> increased.
> But apart from groove spacing - is there any evidence that groove width
> was affected as well? As we know different record companies used
> different groove width both before and after the advent of electric
> recording, and it's also clear that groove width generally decreased
> with time. But I've seen no mention of a major change haven taken place
> due to electric recording.
> Does anyone know more about this?
> Kristjan
>
>
I think it is more likely that you will discover that the width of the 
grooves did not change appreciably, but the ability to do some sort of 
equalization allowed the grooves to be crowded in better. The slowest 
change was on the playback end. This seemed to hold back progress more 
than anything else, particularly in sight of the hardships created by 
the depression.

-- 
Mark L. Bardenwerper, Sr.

Technology...thoughtfully, responsibly.

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