[QuadList] heads and wear

[Videomagnetics]

Yep... we have some of the Green tape .5 Chromium oxide was made by 3M    but no more!!  
Tony

http://www.videomagnetics.com
  ----- Original Message ----- 
  From: C. Park Seward 
  To: Quad List 
  Sent: Friday, January 22, 2010 3:12 PM
  Subject: [QuadList] heads and wear


  I saw a special "burnisher" tape used at the Ampex factory. After making the 1" heads, they were put in a scanner and this special, diamond impregnated tape was run through the machine to contour the heads.


  Never saw a 2" cleaning tape. Maybe it was to burnish new heads.



  Also, head wear was a big topic at the start of the 1" days. Some manufacturers had different thoughts about how abrasive to make the tape. I was told that Sony was a little more abrasive due to a request from NHK. They wanted to keep the heads from clogging so they wanted a little more friction. 


  It is always a tricky balance to make the tape rough enough to keep the heads clean but not too rough to wear them out.


  Best,
  Park


  C. Park Seward
  Visit us: http://www.videopark.com







  On Jan 21, 2010, at 4:52 PM, georgenann at aol.com wrote:


    I also remember there was a 2 inch "Cleaning Tape" made by Ampex.  It would also burnish the heads if needed.  It was green.  If anyone has one, save it, it is a relic.






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