[SBE] Here's a shocker

[A9xw at cs.com]

1/2" tape in a plastic box with a 130 degree scanner wrap. 3M etal 
eventually figured how to  make thinner tape (vs 1.5 mil) so Beta and VHS could use 
slower speeds and a much smaller box.   There must have been 40 different 
reel to reel scanner varieties with 7.5 ips on most (EIAJ-1 and 1a) But 
Phillips (Norelco) used 6.25 IPS. Akai (Oki?) had a 1/4" tape B&W and color 
portapack system.  Shibiden and Sony sold under numerous brand names, GE among 
others. Panasonic and  Shibiden had external color under boxes, Sony had a non 
EIAJ color version  VR5000 I think, then went along with the standard color 
under subcarrier on later versions. (and all those 1 and 2" helicals)   
Prior to Ampex Amtec Colortec was the Coletek. and the Allen mod/demods to retro 
VR1000, V11000 etc. 3M Mincom DOC,  and Bosh did 1"  B format still videos 
by shutteling the tape see-saw past the heads. Then we modified the Ampex 
proc amps for external sync to "erase" the sync jitter residual, since the 
"video jitter" was not visible.  We would turn the Ball Brothers or Conrac 
monitor color and contrast full up to adjust the R & Q to minimize banding and 
the skew control to get rid of the single line vector error along with the 
head switching point to lop off the entry or exit velcomp errors.  TO sync up 
two machines to the same frame,  we put the monitors sideways in the next 
room so you could see the scene change on both while adjusting the capstan 
override on the "slave" and had 15 seconds to do it before hitting network with 
the playback of the time zone net delay. To get frame accurate editing, we 
would magic marker the back side of the tape at the tension arm to park it 
in the same spot since the cue tone system seldom was accurate enough. 

Regards,
Henry
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