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NAGRA SNST-R
OPERATING INSTRUCTIONS FOR THE NAGRA SNST-R
KSA PART NUMBER 20 24002155

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Summary of Contents for Nagra SNST-R

  • Page 1 NAGRA SNST-R OPERATING INSTRUCTIONS FOR THE NAGRA SNST-R KSA PART NUMBER 20 24002155...
  • Page 3 Parts indicated on the photograph on the previous page: Case –lower half attachment screws Supply reel Rewind handle Standstill brake MAN / AUTO selector Reel holder fixation Take-up reel TEST / BATT Control Meter OFF position lock Pinchwheel Phones Jack 2 x 600 Ω Tape Tension Adjustment Operating lever Power and Remote socket...
  • Page 4: Power Supply

    (base) against the serrated contact. To facilitate insertion and removal of batteries, the spring-loaded contact is compressed (Fig 1). Replace the SNST-R’s base and tighten the three screws. (Fig 1) IMPORTANT NEVER LEAVE DISCHARGED BATTERIES IN THE SNST-R: they could leak and the corrosive liquid would cause a great deal of damage.
  • Page 5 TO OPEN THE SNST-R To open and to close the lid, see Fig. 2 and Fig. 3. Fig 2 Fig 3 Slide the thumb piece (Fig. 2) a short distance to the right and lift the lid. Disengage the rear hinge (Fig 3) to remove the cover completely.
  • Page 6 (Fig. 4). If the main control lever (14) cannot be pressed, then verify the position of the lock. Fig. 4 “MAN” OR “AUTO” SWITCH This switch is not used in the SNST-R and should be left in the “MAN” position.
  • Page 7: Tape Selection

    12.5µ tape (TEA – GREEN reel) which gives the same quality recording as 18µ, although mechanical behaviour is slightly less. The SNST-R is factory adjusted and optimised for our 12.5µ TEA tape (in this case 0 dB=250 nWb/m). Red Reel 18µ...
  • Page 8 Now return the operating lever to the OFF position. The above method is most commonly used, being quicker and preventing the possibility of any noise from the free end of the tape rubbing against the lid of the SNST-R.
  • Page 9 OUTPUTS The outputs of the SNST-R are available on the two 3.5mm jack plugs (12) located on the front edge of the SNST-R where the HD 25-13 stereo headphones can be connected with an impedance of 2 x 600 Ω. If a line output is to be used then the output cable SCUCSTR is also...
  • Page 10 IMPORTANT Care should be taken not to leave the operating lever (14) in the ON position when there are no batteries installed in the SNST-R, since prolonged pressure of the pinchwheel against the immobile capstan could cause damage to the rubber tyre.
  • Page 11 Battery check To test batteries, switch on the SNST-R and depress the TEST BATT. Control (8). Their voltage is shown in the green zone of the meter (9) (Fig. 11). At the extreme right end of the scale, the needle indicates maximum voltage, whereas to the left it shows minimum voltage and the batteries must be replaced.
  • Page 12 The channel with the highest level is continuously selected automatically. In fact the SNST-R is equipped with a compressor which, contrary to the ALC on the SNN does not level off dynamic range, but compresses it to a ration of 2.
  • Page 13 Since the SNST-R has separate record and reproduce heads, it is possible to listen to what is being recorded with a headset. There is a slight time lag between the input and output signals corresponding to the distance between the two heads. The record-reproduce mode is extremely useful as it allows for an immediate check whilst recording is underway.
  • Page 14 REWIND Pull the control lever (14) to the REWIND and LOAD position: Lift the handle (a), press the release key (b), which causes the whole winding unit to be raised approximately 1 mm above the reels. Should this not happen, turn the supply reel slightly whilst maintaining pressure on (b). To rewind, turn the handle clockwise without pressing downwards so that the reels turn freely.
  • Page 15: Input And Output

    Specifications All given values are typical. Exact values are given on the INPUT and OUTPUT accompanying final measurement protocol sheet. Microphone input Size and Weight Voltage input, Source ≤ 2 KΩ 60 mV rms Size 147 x 101 x 26 mm Playback output (5 ¾”...