[BC] the old ETs

[Mark Durenberger]

Yes, it had to do with the then-lack of "diameter equalization".

As you approached the center of the disc from the outside and groove 
velocity changed, there was a gradual loss of high-end response.  ETs 
intended to be played back-to-back would have one of each pair recorded from 
the inside out so that the audio sounded the same when you made the switch 
from one ET to the other.

Regards,

Mark Durenberger


----- Original Message ----- 
From: "Barry Mishkind" <barry at oldradio.com>


> Someone asked me some questions about the old ETs ... but I can't remember 
> WHY they would start the recording on the inside of the disc, rather than 
> the outer edge.
>
> Anyone recall this?
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