[QuadList] TCR 100 Threader

[rabruner at aol.com]

> I never had more than a casual look at the TCR-100, and didn't > realize that it used the same head as the other machines. Threading > must have been quite a trick. How did they do that? 
> 
> Don 
> ----- Original Message ----- 
> From: Trevor Brown 
> 
> Ampex head could be controlled better in the record domain to mach > a standard replay 
> 
> But then RCA did manage to keep the same head assembly for all > their machines including the TCR 100 
> 
> 
> 
 
 


It was the same head, but they added a plastic faring to the top of the guide shoe that helped the tape slide past the square corners at the top of the guide.  
If you didn't have this on the head, It would sometimes thread o.k, but there 
was a pretty good chance it would crunch  the tape when the treader mechanism
tried to bring the tape into position.
Bob Bruner
Engineer In Charge
Maintenance and Design
WTTW/Chicago

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