CH> Which one?  B77? (If I remember my Revox numbers?)  Damn fine stuff
 CH> too. 
 GR> Umm, A-77 I think was the domestic version. 3.5 ips / 7 ips
 GR> 12" reels, large hub (adaptors)
A-77 was the lower end and B-77 the big brother of the Revox (Studer
consumer/low end pro) reel to reel line.  Both were replaced with the PR-99,
which uses some parts in common, but updated electronics that were overdue 
or
redesign, and made some things easier to service, or less expensive to
manufacture in an overall better product.  
It's not an issue of domestic or foreign versions, as all were multi-voltage
and designed to be operable from 240 V floating or other less demanding input
options, and had servo capstans not frequency dependent.  That's 10.5" reels,
BTW.  Versions would have been Mark III or Mark IV for late 60's through
1980-ish era when those were common.  
Terry
--- Maximus 2.01wb
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