[QuadList] Dolby Question

[Don Norwood]

This isn't exactly a quad topic, but the Dolby units in question can be used to process Dolby-A encoded quad tapes!

I have several Dolby 380 units which are two-channel Dolby A with interfaces for the Ampex VPR-3.  Two of the units use Cat 55 cards which is what the manual I have shows in the frame, but one uses Cat 225 cards instead.  Anyone know what the difference is between the 55 and 225 cards?  An inquiry to Dolby yielded a non-helpful reply.

Don Norwood
Digitrak Communications, Inc.
www.digitrakcom.com

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://quadvideotapegroup.com/pipermail/quadlist_quadvideotapegroup.com/attachments/20140505/27b9f4fe/attachment-0003.html>