Above is another view of Mr Blackham's unusual Nagra SNN. As far as I can see, apart from not having
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the various anodised legends on the deck plate, also absent are the adjustable AGC threshold knob and
& f J* H/ M" ]the transport lock-out 'switch' next to the meter. The cover 'hinge' arrangement differs slightly from later
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machines, as does the 'patina' of the anodised finish. A most interesting version, has anyone got another?
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(Apparently yes, I have recently been advised.)
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8 A0 V# b) o) ?" iClick on either of the above images for more information.
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* For those who are looking at the stereo versions of this recorder often to be found on 'Eday', do
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beware, as It is unlikely that these will be the recent versions designed to record high quality music.
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There are now apparently four versions of the Nagra 'SN':
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; b& D5 p( ^4 v% r! O7 \Nagra SNN - full track recording at 3 3/4 and 1 7/8 i.p.s. - high quality recording in Mono
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Nagra SNS - half track recording at 1 7/8 and 15/16 i.p.s. - surveillance quality recording in Mono
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; }" `- ?. u: J L: c$ f6 [) `Nagra SNST - Stereo recording at 1 7/8 and 15/16 i.p.s. - surveillance quality recording in Stereo
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1 B' f- c% ]5 Q8 K4 ?: a/ Y! HNagra SNSTR (recent) - Stereo recording at 3 3/4 and 1 7/8 i.p.s. - high quality recording in Stereo
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Apparently for covert surveillance use it was preferable to have two separate recording channels to
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have some chance of capturing a muffled or distant conversations. So these older stereo machines will
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optimized for speech recording only, and will also
run at low speed for maximum
. M; R# t9 M9 \# M# U+ [1 Trecording time and not fidelity. Actually Nagra made a special playback loudspeaker system (25100
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DSP) with built in equalization to compensate for the quite limited frequency response of these
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recorders. A standard mono Nagra SNN running at 3 and 3/4, like the ones on this page are capable of
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the slow speed SNS and the SNST stereo versions are not. Perhaps it might
; N0 l$ Y) g/ Z2 jbe possible to convert these machines for Hi-Fi use, but this would involve replacing most of the
) l* e( S* e- r0 B D% ?electronics and be very expensive.
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Cheaper to buy a rather bette
r stereo
IV-S in the first place!
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Tape for the Nagra SN
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( N I# B: B. ]8 ]I have been amazed at the prices some people have been willing to pay on that wild west auction site for
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the little reels of tape for this machine. When I first acquired my example from the BBC naturally I
! b0 z+ a0 D9 E9 F' b6 V$ P2 qwanted to play with it and make some recordings. I knew that the tape was basically re-reeled cassette
$ b- P5 h' r3 D% htape so I approached a tape duplication house in the UK and quite easily obtained a few part used
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'pancakes'. These are the un-flanged bulk reels of tape (about 10" dia) that are automatically wound into
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the cassette shells. I then contacted Nagra UK (always helpful) and obtained for around ?5 each
( \1 ^: c# N+ n. K) }) m. vseveral pairs of empty plastic reels. It then was quite a simple matter to wind tape off the pancake and
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onto the Nagra plastic reel (by using the hand crank on the machine). I did this a few years ago and
- u( F d4 I8 S* v8 |+ Y( t+ \- }, i5 Jthings may be slightly different these days, but perhaps worth investigating rather than spending some
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VERY silly money.
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