Some of the four-track in-line heads cheated down a little from the 
standard 43 mil track width, but I think it was down to 38 mils to allow 
for better crosstalk. This is not well documented...but then again we 
have a variation of at least 75-82 mils in "NAB" two track heads. At 
this point, if one is dealing with more than three tracks on 1/4-inch 
tapes there are usually larger issues than this.



On 2015-03-09 9:09 PM, Dave Radlauer wrote:
> Careful there, I don't think there's a one to one relation between 4-track
> and 1/4 track formats, but I'm sure more knowledgeable voices will chime in.
>
> Dave R
>
-- 
Richard L. Hess                   email: [log in to unmask]
Aurora, Ontario, Canada                             647 479 2800
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