[QuadList] OT Has anyone heard of this?

[David Crosthwait]

Interesting find Don. Google Translate debauchery says: 

"ie this device are / were part of the prof. Rail of Grundig AG in Electronic Business. It was a question of prof. 1 inch video tape equipment, which worked in the helical scanning system according to Schüller with 2 rotating video heads and 2 other rotary erase heads. The relative speed achieved in this case the head / tape was about 19.7 m / sec at a speed of tape advance 22cm/sec. The video bandwidth achieved on this occasion were initially (1972: BK 200) nor in 8Mhz later at> 10Mhz (1977: BK411) with an S / N> 55 dB!. It was a normal video signals to CCIR in black and white or with the LIR block in color (PAL or SECAM L / M, or AIA (USA: NTSC standard are recorded), but not just standard signals were recorded with these devices.

Including for example the image signals from radar sighting equipment (air traffic controllers, military applications), but also the diagnostic image signals in the medical field. You can find these devices are still used in many medical clinics, but they are now used mainly for archiving purposes or until all records are transferred to other media.

Also standard is the audio device is not as bad: two completely independent tracks, timecode prepare (a trail), frequency response to> 22000Hz."

David, when all is said and done, who knows what you may find on that tape. Visually looking at Don's link pictures, it's difficult to determine if this is a B wrap machine or not.


David Crosthwait
DC Video

www.dcvideo.com



On Apr 16, 2012, at 12:51 PM, Don Norwood wrote:

> Perhaps the planets are aligned strangely.....I've had more odd 1" format situations in the past 30 days than I've had in years!
>  
> Following up on David Crosthwait's finding below, look at the info here regarding the BK411 (a later version of the 401 with better bandwidth according to the information posted in German):
> http://www.radiomuseum.org/r/grundig_bk401_1023.html
> Can't tell about the B-wind, but the speed matches what was quoted in David Dean's original question.  According to the post, the 411 came out in 1977, so it seems a bit unusual that it would have still been in use in '89.
>  
> Don Norwood
> Digitrak Communications, Inc.
> www.digitrakcom.com
> ----- Original Message -----
> From: David Crosthwait
>  
> Mr. Dean has indicated that it is a 10.5" reel. That will not fit onto any IVC machine except the 900 series, the really big decks. 
> 
> BASF B wind. 1989. No audio except for control noises. Interesting. Computer tape? 
> 
> Some searching indicates that this was used as standard video tape and for medical imaging using a Grunding VTR:
> http://horizon.documentation.ird.fr/exl-doc/pleins_textes/pleins_textes_5/pt5/nemato/24492.pdf
> "Professional 2.5 cm video recorder Grunding BK 411 HE, 10MHz resolution, converted to 875lines/50 Hz. 110 min. playing time (2.5 cm chromium dioxide BASF tapes CV 26 R). With electronic editing to assemble and insert various scenes; slow motion forward and reverse and additional module to record individual frames with stationary magnetic tape."
> 
> Was Grunding a B wrap machine?
> 
> david at dcvideo.com
> 
>  
>>> From: quadlist-bounces at quadvideotapegroup.com [mailto:quadlist-bounces at quadvideotapegroup.com] On Behalf Of David Dean
>>> Sent: 16 April 2012 17:07
>>> To: Quad List
>>> Subject: [QuadList] OT Has anyone heard of this?
>>> 
>>> 
>>> Hi
>>> 
>>> 
>>> I have a weird "Video Tape", it is made  by BASF and has the following info - CV26R 1440m, 114 mins (@21 cms/\sec) GPR-Standard on a 10.5 inch NAB 1" reel. The tape has 20 feet of clear leader at the start and end, and was recorded in 1989. It is also a "B" wind. It does not produce anything on a B or C format macine other  than some control signalls from the audio.
>>> 
>>> 
>>> Any good ideas, thanks
>>> 
>>> 
>>> David Dean
>>> 
> Please trim posts to relevant info when replying.
> 
> Change subject to reflect thread direction. Thanks.
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