Technical Details
Brand: Tandberg
Model:Series 9000X
Category:Mid High Fidelity
Application:Consumer
Electronics:Solid State
Equalization:IEC
Country of Manufacture:Norway
Release dates:1972 - 1976
Original Price: $236
Tracks:1/4 Rec/PB
Speeds: 1 7/8, 3 3/4, 7 1/2
Max Reel Size("): 7"
Number of heads: 4
Dimension: 15¾ x 16 x 7" (400 x 410 x 180mm)
Head Composition: Permalloy
Head Configuration: Stereo
# Motors: 3
Auto Reverse?:No
Voltage(s): 110-120v
Outputs: RCA
Frequency Response:(DIN 45511): 7½ ips: 40Hz - 22kHz 3¾ ips: 50Hz - 16kHz 1 ips: 50Hz - 9kHz
Wow and Flutter:7½ ips: 0.07%., 3¾ ips: 0.14%. 1 ips: 0.28%
Sound quality rating:6 / 10
Long-term reliability rating: 7/ 10
Weight: 34½ lb (15.7kg)
Additional Details
Description
This was the first three-motor reel tape recorder from Tandberg, and after almost 20 years of the famous
‘joystick’ control, the 9000 series was also the first Tandberg with push-button tape transport functions.
Available in both half and quarter-track versions, the 9000X was a three speed recorder with a frequency response of 30Hz – 22kHz at 7½ ips.
Of course, all the electronics were totally solid-state. Four heads were used, the standard three for erase, record and playback plus a fourth crossfield bias head. Apart from Akai and their American clone Roberts, Tandberg was the only other tape recorder manufacturer to use the crossfield system.
The Series 9000 X was further developed to into the series 9100 X and series 9200 XD. The XD model had Dolby noise reduction.
(9041X quarter-track, 9021X half-track)
Additional Info
Year 1972
Price when new (in the UK) £236 (teak) £239.3 (rosewood)
Track system Quarter-track or half-track stereo
Heads Four: erase, record and playback plus crossfield bias head
Motors Synchronous hysteresis capstan motor, two separate reel motors
Maximum reel size 7″
Tape speeds 7½ ips , 3¾ ips & 178blue.jpg (4923 bytes) ips
Frequency response (DIN 45511)
7½ ips: 40Hz – 22kHz
3¾ ips: 50Hz – 16kHz
1 ips: 50Hz – 9kHz
Wow & flutter (measured W.R.M.S.) 7½ ips: 0.07%;, 3¾ ips: 0.14%; 1 ips: 0.28%
Speed tolerance 1%
Hum and noise -65dB at 7½ ips
Crosstalk Mono: 60 dB, Stereo: 50 dB
Distortion From tape at 0 dB, 400 Hz: 3%
Semi-conductors 38 transistors, 17 ICs
Rewind speed 1200 ft reel – 55 seconds; 1800ft reel – 78 seconds
Inputs
microphone: 200ohms, 0.05-100mV,
radio: 50K, 5mV-10V
line: 1M, 100mV-15V
Outputs
radio: 5K, 0.75 V
line: 200ohm, 15V
headphones: 8ohm, 5 mW.
Dimensions 15¾ x 16 x 7″ (400 x 410 x 180mm)
Weight 34½ lb (15.7kg)