[QuadList] CBS ACR-25's

[Rory Ryan]

I remember repairing TCRs like that!    There was a circuit in the reel
servo power amps that, when one of the drivers shorted in just the right
way, would put -80 volts on the machine's Reset Bus!  That was a LOT of
blown DTLs!  

 

 

  _____  

From: quadlist-bounces at quadvideotapegroup.com
[mailto:quadlist-bounces at quadvideotapegroup.com] On Behalf Of Trevor Brown
Sent: Sunday, January 10, 2010 4:31 PM
To: 'Quad List'
Subject: Re: [QuadList] CBS ACR-25's

 

Lucky you  my company had TC100's one with 600 signal processing, and
Pinzone mods(not sure how you spell the guys name)

I spent a lot of time head clutching and when the +5 went hi and it lost
several hundred DTL chips which were then too old to source in the UK

RCA had to fly them in.................

Trevor Brown 

UK member

 

From: quadlist-bounces at quadvideotapegroup.com
[mailto:quadlist-bounces at quadvideotapegroup.com] On Behalf Of
chill315 at aol.com
Sent: 10 January 2010 20:42
To: quadlist at quadvideotapegroup.com
Subject: Re: [QuadList] CBS ACR-25's

 

Did not Merlin also offer stereo retrofit kits for the ACR's?  I have a
bunch of old Merlin literature and I will have to dig it out to see if that
was done.  

 

ACR-25 was a beautiful machine.  I think about it and realize the amount of
sophistication that went into the design and control system.  This was
before any computers were available for control that could really do wonders
now.

 

Ampex did a beautiful job on the design.

 

Chris Hill

WA8IGN

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