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Stereophonic Tuner twenty 20B

Stereophonic Tuner twenty 20B; Marantz Sound United (ID = 1826610) Radio
 
Stereophonic Tuner twenty 20B; Marantz Sound United (ID = 1826613) Radio
 
Stereophonic Tuner twenty 20B; Marantz Sound United (ID = 1826614) Radio
 
Stereophonic Tuner twenty 20B; Marantz Sound United (ID = 1826615) Radio
 
Stereophonic Tuner twenty 20B; Marantz Sound United (ID = 1826616) Radio
 
Stereophonic Tuner twenty 20B; Marantz Sound United (ID = 1826617) Radio
 
Stereophonic Tuner twenty 20B; Marantz Sound United (ID = 1826621) Radio
 
Stereophonic Tuner twenty 20B; Marantz Sound United (ID = 1826622) Radio
 
Stereophonic Tuner twenty 20B; Marantz Sound United (ID = 1826623) Radio
 
Stereophonic Tuner twenty 20B; Marantz Sound United (ID = 1826625) Radio
Stereophonic Tuner twenty 20B; Marantz Sound United (ID = 1829287) Radio
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Stereophonic Tuner twenty 20B; Marantz Sound United (ID = 1829287) Radio
Marantz Sound United: Stereophonic Tuner twenty 20B [Radio] ID = 1829287 1400x622
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For model Stereophonic Tuner twenty 20B, Marantz (Sound United LLC); Vista, CA
 
Country:  United States of America (USA)
Manufacturer / Brand:  Marantz (Sound United LLC); Vista, CA
Year: 1970 ? Category: Broadcast Receiver - or past WW2 Tuner
Valves / Tubes 1: D3-11GJ
Semiconductors (the count is only for transistors) 40:
Main principle Superhet with RF-stage; ZF/IF 10700 kHz
Tuned circuits 19 FM circuit(s)
Wave bands FM Broadcast Band Only
Details
Power type and voltage Alternating Current supply (AC) / 50 to 60 cycles, 120; 240 Volt
Loudspeaker - For headphones or amp.
Power out
from Radiomuseum.org Model: Stereophonic Tuner twenty 20B - Marantz Sound United LLC;
Material Metal case
Shape Book-shelf unit.
Dimensions (WHD) 390 x 146 x 365 mm / 15.4 x 5.7 x 14.4 inch
Notes

Oscilloscope indicator for tuning, field strength, multipath, internal or external audio.
Front-End with dual-gate MOSFET RF-preamplifier, FET-mixer.
30 bipolar transistors + 10 FET.

Predecessor: Marantz Stereophonic Tuner twenty.

Net weight (2.2 lb = 1 kg) 13 kg / 28 lb 10.1 oz (28.634 lb)
Price in first year of sale 3'950.00 DM
Mentioned in -- Original-techn. papers.
Literature/Schematics (1) HiFi-Jahrbuch 6, Nr. 383, Verlag G. Braun, 1972
Literature/Schematics (2) HiFi Stereophonie Test Jahrbuch 1972

Model page created by Bernhard Nagel. See "Data change" for further contributors.



All listed radios etc. from Marantz (Sound United LLC); Vista, CA
Here you find 538 models, 529 with images and 84 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.




  
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