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| Vintage Tape (Audio), Cassette, Wire and Magnetic Disc Recorders and Players Open-reel tape recorders, cassette recorders, 8-track players etc. |
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Thread Tools |
8th May 2017, 3:24 pm
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#1 |
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Hexode
Join Date: Jul 2009
Location: Wokingham, Berkshire, UK.
Posts: 437
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Tandberg fluxivity level
Hi all,
Does anyone have any idea/figures on the fluxivity levels of Tandberg R2R test tapes? Ta John |
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8th May 2017, 4:34 pm
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#2 |
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Dekatron
Join Date: Jul 2008
Location: Kington, Herefordshire, UK.
Posts: 3,675
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Re: Tandberg fluxivity level
Most test tapes in the sixties were either at 320nWb/m or 185/200nWb/m, the former European and the latter American, broadly speaking. Domestic machines tended to peak at 320 or thereabouts, which roughly corresponded to 3% distortion on the tape stock of the day.
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8th May 2017, 6:29 pm
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#3 |
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Hexode
Join Date: Jul 2009
Location: Wokingham, Berkshire, UK.
Posts: 437
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Re: Tandberg fluxivity level
Hi Ted,
Thanks very much. Yes I was aiming at 320nWb/m, as Tandberg were this side of the pond so would most likely use the IEC/DIN standard. I just wondered if anyone had any definitive figure, similar to what Revox/Studer put in their manuals. I have Revox 257/NAB cal tape set, plus a BBC 120nWb/m one, so may splash out on a "standard" 320 set (gulps and clutches wallet). Many thanks. John Last edited by John Caswell; 8th May 2017 at 6:33 pm. Reason: Addnl blurb |
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8th May 2017, 8:25 pm
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#4 |
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Dekatron
Join Date: Jul 2008
Location: Kington, Herefordshire, UK.
Posts: 3,675
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Re: Tandberg fluxivity level
120nWb/m is 8.5 dB below 320, 200 is about 4dB below, so it is possible to do the line-up with these tapes by applying the appropriate fiddle factor...test tapes always did cost a mint, but with good reason!
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8th May 2017, 11:20 pm
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#5 |
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Hexode
Join Date: Jul 2009
Location: Wokingham, Berkshire, UK.
Posts: 437
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Re: Tandberg fluxivity level
Hi Ted,
Yep that is what I have been doing, then you forget and wonder what has gone wrong  and have to go back and do it again - damn. I think I will be brave and hang the cost, two or three hours of wasted time pays for them.John |
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8th May 2017, 11:44 pm
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#6 |
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Dekatron
Join Date: Jul 2008
Location: Kington, Herefordshire, UK.
Posts: 3,675
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Re: Tandberg fluxivity level
Yeah, been there too...
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9th May 2017, 4:14 pm
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#7 |
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Hexode
Join Date: Jul 2009
Location: Wokingham, Berkshire, UK.
Posts: 437
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Re: Tandberg fluxivity level
Hi Ted et al,
Of course if I had looked in my copious stocks of calibration tapes (yeah right) I would have found my original Tandberg level calibration tape of 400Hz and 320nWb/m d'oH. Thanks anyway Ted John |
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10th May 2017, 2:15 pm
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#8 |
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Octode
Join Date: Mar 2006
Location: Lund, Sweden
Posts: 1,632
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Re: Tandberg fluxivity level
Is that the one of the tapes on the small 3" reels, labeled things like "Tandberg test tape no 4" ?
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10th May 2017, 3:08 pm
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#9 |
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Hexode
Join Date: Jul 2009
Location: Wokingham, Berkshire, UK.
Posts: 437
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Re: Tandberg fluxivity level
Hi Ricard,
Yes it is. John |
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