Synthesized Stereo Tuner ST-50L

Synthesized Stereo Tuner ST-50L; Marantz; Itasca (ID = 2444358) Radio Synthesized Stereo Tuner ST-50L; Marantz; Itasca (ID = 2444359) Radio
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Synthesized Stereo Tuner ST-50L; Marantz; Itasca (ID = 2444358) Radio
Marantz; Itasca: Synthesized Stereo Tuner ST-50L [Radio] ID = 2444358 1400x330
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For model Synthesized Stereo Tuner ST-50L, Marantz; Itasca:
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Country:  United States of America (USA)
Manufacturer / Brand:  Marantz; Itasca
Year: 1980 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, Long Wave and FM or UHF.
Details Hi-Fi equipment
Power type and voltage Alternating Current supply (AC) / 110; 120; 220; 240 Volt
Loudspeaker - For headphones or amp.
Power out
from Model: Synthesized Stereo Tuner ST-50L - Marantz; Itasca
Material Metal case
Shape Book-shelf unit.
Dimensions (WHD) 420 x 86 x 334 mm / 16.5 x 3.4 x 13.1 inch

A 3 band synthesized stereo hi-fi AM/FM tuner covering FM, MW and LW. RCA sockets for line output and remote input/output, coax socket for 75ohm FM aerial and terminals for AM aerial.  Memory for 30 preset radio stations, FM IF Wide/Narrow switch, keys for tuning up/down, mono/stereo and frequency direct access tuning, 

FM Stage87.5-108 MHz
  DIN mono (s/n 26dB 75Ω)0.7µV
  DIN stereo (s/n 46dB 75Ω)20µV
Selectivity adjacent channel 98MHz 
  Wide IF
  Narrow IF
Tuner output (1kHz 75kHz Deviation)940mV
Signal to noise ratio 
  S/N DIN weighted mono
  S/N DIN weighted stereo
Total harmonic distortion mono
   Wide IF
   Narrow IF

 Total harmonic distortion stereo
   Wide IF
   Narrow IF

 Accuracy of frequency response
   across 30Hz-15kHz bandwidth
Stereo separation
   Wide IF
   Narrow IF

MW Stage531-1602 kHz
Sensitivity (s/n 20dB 30% mod. 1 MHz)350µV
Selectivity 1MHz 9kHz40dB
Signal to noise ratio at 1MHz54dB
LW Stage152-282 kHz
Sensitivity (s/n 20dB 30% mod. 250kHz)800µV
Signal to noise ratio at 250kHz50dB

Versions/Power Requirements
N and W/T versions  /  220/240V AC, 50/60 Hz
E version   /  110-120/220-240V AC, 50/60 Hz with voltage selector

Same as the 2 band Marantz ST-50 Synthesized Stereo Tuner with the addition of LW.


Net weight (2.2 lb = 1 kg) 4.5 kg / 9 lb 14.6 oz (9.912 lb)
Mentioned in -- Original prospect or advert (Marantz Not For The Casual Listener catalogue 1980)
Literature/Schematics (1) - - Manufacturers Literature (Service Manual ST-50/ST-50L)

Model page created by Howard Craven. See "Data change" for further contributors.

All listed radios etc. from Marantz; Itasca
Here you find 398 models, 392 with images and 72 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.