[QuadList] RCA TRT Quad Headwheel panel on ebay

[Don Norwood]

Hi Ted:

According to my RCA catalog, this part number is a 5-mil headwheel with ball bearings.  

A bit of headwheel trivia.......These lowband headwheels were offered with either ball bearings or air bearings.  I believe that RCA was the first to offer air bearings, while Ampex was the first to offer rotary transformers.  RCA apparently continued to offer the lowband heads after they developed their highband head.   However, after Ampex introduced the Mark Ten for highband, they no longer made their lowband panels, but versions of the Mark Ten were available for low band.  As far as I know, there were never any of the Ampex lowband Mark Three panels that had air bearings, but the Mark Ten was available either way to accomodate machines without the air package.

Don
  ----- Original Message ----- 
  From: Ted Langdell 
  To: Quad List 
  Sent: Friday, December 19, 2008 10:14 PM
  Subject: [QuadList] RCA TRT Quad Headwheel panel on ebay


  This has apparently been on ebay for a while.  


  RCA part MI-40791-AZ, serial 3203.


  http://cgi.ebay.com/Vintage-Quadruplex-VTR-Headwheel-RCA-TRT-Quad_W0QQitemZ230252354142QQcmdZViewItemQQptZVideo_recorders_Players?hash=item230252354142&_trksid=p3286.c0.m14&_trkparms=66%253A4%257C65%253A1%257C39%253A1%257C240%253A1318#ebayphotohosting


  Hope everyone is warm and dry... and doesn't suffer a power outage or air loss while the headwheel is spinning. 


  Ted


  Ted Langdell
  Ted Langdell Creative Broadcast Services
  Marysville, CA
  Main:   (530) 741-1212


  tedlangdell.com. Storytelling through Broadcast Coverage and Creative Services since 1974






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