[QuadList] Non-Contact Extraction of the Program from Quad Tape- Ampex n...

[Pat Shevlin]

That's the Sony Sprinter technology that was used for VHS.  The master tape
had a 2000 oersted flux level.  It also had a mirror image recorded on it
for the transfer process

 

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From: quadlist-bounces at quadvideotapegroup.com
[mailto:quadlist-bounces at quadvideotapegroup.com] On Behalf Of
Chill315 at aol.com
Sent: Monday, February 16, 2009 7:33 PM
To: quadlist at quadvideotapegroup.com
Subject: Re: [QuadList] Non-Contact Extraction of the Program from Quad
Tape- Ampex n...

 

I came up with another idea for non contact playback.

 

Ampex made the high speed duplicator that used a mirror image master with a
very high orested magnetic tape.  Then the master was put in an intimate
contact with a regular tape and subjected to a field.  NET in Ann Arbor had
one of the machines.  It was lost in the fire that took the building.  Along
with a number of historic items.

 

Anyhow, could a low energy field be passed through the tape with a
stationary sensor in contact with the tape.  Then sense the magnetic
properties of the tape.  This would have to be a very low level so as not to
erase the tape.  The sensor would have to be on the order of 5 to 10 mills
wide.  Most likely 5 mils wide to be able to recognize the guard bands.  

 

Then have a standard audio stack read the audio.  

 

Now that I came up with a pipe  dream, any comments?

 

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