Country of Manufacture:Norway
Release dates:1968 - 1971
Speeds: 1 7/8, 3 3/4, 7 1/2
Max Reel Size("): 7"
Number of heads: 2
Dimension: 15½ x 11¾ x 7" (394 x 298.5 x 178 mm)
Head Composition: Permalloy
Head Configuration: Stereo
Voltage(s): 110-120v, 220-240v
Frequency Response:7½ ips: 40Hz - 16kHz (3 dB)
Wow and Flutter:0.10% at 7½ ips, 0.15% at 3¾ ips and 0.35% at 1 7/8 ips
Signal-to-Noise Ratio:58 dB (quarter-track) and 60 dB (half-track) 7½ ips
Sound quality rating:6 / 10
Long-term reliability rating: 7 / 10
Weight: 23 lbs (10.5kg)
A fully transistorised robust mono recorder which was aimed at the school, factory, hotel, conference
and institution markets.
Available in either half-track or 4-track models, the series 15 could be used with a remote control (model 15-F) or be specially configured for language laboratory work (model 15-SL).
Some of the advertised features of the Series 15:
– a ten-watt RMS amplifier handy for P.A. applications
– full mixing of mic & line inputs, adjustable monitoring during recording
– separate bass & treble controls
– built-in 4 x 7 inch speaker
Audio output power: ten watts at 5% distortion / Speaker(s): 7″ x 4″ /half or quarter-track mono (stereo playback was possible using the “free-head” output with an external amplifier)