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AM/FM Stereo Tuner ST-7E / ST-7 Australia

AM/FM Stereo Tuner ST-7E / ST-7 Australia; Nakamichi Co.; Tokyo (ID = 566977) Radio AM/FM Stereo Tuner ST-7E / ST-7 Australia; Nakamichi Co.; Tokyo (ID = 699468) Radio
AM/FM Stereo Tuner ST-7E / ST-7 Australia; Nakamichi Co.; Tokyo (ID = 699488) Radio AM/FM Stereo Tuner ST-7E / ST-7 Australia; Nakamichi Co.; Tokyo (ID = 1887520) Radio
AM/FM Stereo Tuner ST-7E / ST-7 Australia; Nakamichi Co.; Tokyo (ID = 1887524) Radio
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AM/FM Stereo Tuner ST-7E / ST-7 Australia; Nakamichi Co.; Tokyo (ID = 566977) Radio
Nakamichi Co.; Tokyo: AM/FM Stereo Tuner ST-7E / ST-7 Australia [Radio] ID = 566977 863x300
Select picture or schematic to display from thumbnails on the right and click for download.
For model AM/FM Stereo Tuner ST-7E / ST-7 Australia, Nakamichi Co.; Tokyo:
Original prospekt in 1987.
 
Country:  Japan
Manufacturer / Brand:  Nakamichi Co.; Tokyo
Year: 1987–1989 Category: Broadcast Receiver - or past WW2 Tuner
Semiconductors (the count is only for transistors) Semiconductors present.
Main principle PLL, Phase-locked loop
Wave bands Broadcast (BC) and FM or UHF.
Details Radio Control (+Remote Wire etc)
Power type and voltage Alternating Current supply (AC) / 120; 220; 240 Volt
Loudspeaker - For headphones or amp.
Power out
from Radiomuseum.org Model: AM/FM Stereo Tuner ST-7E / ST-7 Australia - Nakamichi Co.; Tokyo
Material Metal case
Shape Book-shelf unit.
Dimensions (WHD) 435 x 63 x 289 mm / 17.1 x 2.5 x 11.4 inch
Notes

A hi-fi AM/FM stereo synthesizer tuner with a digital frequency display housed in a black metallic case. Provision for system wired remote control. With Schotz Noise Reduction circuit, Memory for 16 FM and MW stations, switches for FM Mute and Mode (mono/stereo). AM loop antenna, 2 terminals for FM antennae, terminals for AM antennae, connection for System Remote control, RCA phono Line Output sockets with output level adjusters.

AM/FM-Synthesizer-Tuner mit Schotz-Schaltkreis (Noise Reduction). 16 UKW- und MW-Sender speicherbar. UKW-Muting-Funktion und Betriebsarten-Schalter (Mono/Stereo).
2 Antennenanschlüsse für Haus- und Rotorantenne oder Kabel. Gehäuseausführung Schwarz-Metallic.

Specification  
FM Section With 75Ω antenna input
Frequency Range 87.50-108.00MHz 50kHz steps
IHF Usable Sensitivity Mono 10dBf/10.9µV, Stereo 20dBf/2.7µV
50dB Quieting Sensitivity  
 Mono
 Stereo with Schotz NR
18dBf/2.2µV
31dBf/9.7µV, without Schotz NR 40dBf/27µV
S/N Ratio Mono > 76dB, Stereo > 71dB
Schotz NR Improvement > 6dB
Schotz NR Active Level 19-53dBf/2.5-125µV
Hi-Blend Threshold Level 19dBf/2.5µV
Muting Threshold Level 20dBf/2.7µV
Frequency Response 20-15,000Hz ±1dB
THD (1kHz)  Mono < 0.08%, Stereo < 0.1%
Capture Ratio  2.3dB
Alt. Channel Selectivity (±300kHz) > 60dB
Stereo Separation
  100Hz/1kHz/10kHz
45/50/40dB
Spurious Response Rejection > 100dB
Image Rejection > 100dB
IF Rejection > 100dB
AM Suppression > 60dB
AM Section Modulation: 400Hz, 30%
Frequency Range 522-1,611kHz 9kHz steps
Usable Sensitivity 50dBµ/m
S/N Ratio (RF input 90dBµ/m) > 48dB
THD (RF Input 90dBµ/m) < 0.4%
Selectivity (±9 kHz) > 18dB
Output Level/Impedance  
 FM (1kHz, Mono, 60% Mod.)
 AM (400Hz, 30% Mod.)
0.5-2.0V (variable)/1.5kΩ
0.2-0.9V (variable)/1.6kΩ
FM Antenna Inputs  
 ST-7E
 ST-7 (Australia)
75Ω unbalanced x 2
75Ω unbalanced, 300Ω balanced

Power Requirements: 120, 220 or 240V AC 50/60Hz (According to country of sale)
Power Consumption: 15 Watts max.

Very similar to the Nakamichi ST-7 AM/FM Stereo Tuner.

Net weight (2.2 lb = 1 kg) 4.7 kg / 10 lb 5.6 oz (10.352 lb)
Source of data -- Original prospect or advert
Mentioned in -- Original prospect or advert (1987 and 1989 Nakamichi catalogues)
Literature/Schematics (1) - - Manufacturers Literature (Service manual ST-7 ST-7E/ ST-70)
Literature/Schematics (2) - - Manufacturers Literature (Owner's manual ST-7/ST-7E)

Model page created by Franz Scharner. See "Data change" for further contributors.



All listed radios etc. from Nakamichi Co.; Tokyo
Here you find 131 models, 105 with images and 13 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.



  
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