[QuadList] OT: 1" Type-B format question

[David Crosthwait]

The stationary control head observation is correct.

B format was used in the states up till about 1985 or so for field/post production but once the second generation of Sony C machines become widely accepted, the usage dropped off radically, at least that's the way it played out here in Hollywood/Los Angeles. I have lunch occasionally here in Burbank with long time friend who used to run a B format field operation. 

I've had PAL B format tapes recorded in Germany here from transfer recorded in the late 80's. So one could assume that it was supported there a lot longer than here. That would make logical sense as I worked an early HDTV Bosch truck outfitted with two Bosch BCH-1000 analog VTR's in about 1994 here in Burbank.

We have B format machines operating here in NTSC/PAL/SECAM. 

Best Regards,

David Crosthwait
DC Video
Archived Media Transfer and Re-mastering Services

Offices located at:
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On Apr 2, 2012, at 7:24 AM, David Dean wrote:

> Hi Don et All
> 
> Yes the head is stationary and part of the Video Drum, as to why I presume it was to keep tracking stable, it is quite a distance from the Video Head to the Audio stack probably about 9". The only B formats I ever heard of in 525 were PAL-M machines, although the machines (or bits of)  I have all have NTSC lights on them! I have not had much joy trying to find heads and other bits for them, although I do have a few BCN 40-41 head biscuits and the Jig to fit them.
> 
> David Dean
> ----- Original Message ----- From: "Don Norwood" <dwnorwood at embarqmail.com>
> To: "Quad List" <quadlist at quadvideotapegroup.com>
> Sent: Monday, April 02, 2012 3:05 PM
> Subject: Re: [QuadList] OT: 1" Type-B format question
> 
> 
>> ----- Original Message ----- From: "David Dean"
>> 
>>> I have just looked at my head block and the A3 track is on the lower edge of the stack, nearest the deck plate, two further considerations, the control track head is on the Video Head  and the tape is wound oxide out on the supply reel, ( like the take up on a VPR2 !).
>> 
>> Hi David:
>> 
>> Thanks for the confirmation!  I was about 99.9% sure that was the case after I figured out that the tape had been wound improperly.  If it had arrived with the oxide out, it would have been obvious that it was probably Type-B, but the A-wind had me puzzled.
>> 
>> Type-A machines are like the VPR-1 & 2 in that they have A-wind for the supply reel and B-wind for the take-up.  I have gotten a couple of Type-A tapes that arrived B-wind due to being stored tails-out, so the wind isn't an absolute indication of format, but in most cases it is.
>> 
>> When you say that the CT head is on the Video Head, I assume that you mean it is a stationary head mounted at the drum, and not a part of the rotating scanner?  It does seem that the track placement between A1 & A2 is unusual. I wonder what the reason for that might have been?
>> 
>> Don Norwood
>> Digitrak Communications, Inc.
>> www.digitrakcom.com
>> 
>> Please trim posts to relevant info when replying.
>> 
>> Change subject to reflect thread direction. Thanks.
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> 
> 
> Please trim posts to relevant info when replying.
> 
> Change subject to reflect thread direction. Thanks.
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