• Country
• France

• Manufacturer / Brand
• GMR (G.M.R.), Georg, Montastier et Rouge; Montrouge, Paris

• Year
• 1936

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 68552

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 6

• Valves / Tubes
• 6D6 6A7 6D6 6B7 42 80

• Main principle
• Superhet with RF-stage; ZF/IF 465 kHz

• Tuned circuits
• 7 AM circuit(s)

• Wave bands
• Broadcast, Long Wave and Short Wave.

• Power type and voltage
• Alternating Current supply (AC) / 115; 130; 230; 260 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 19 cm = 7.5 inch

• Material
• Wooden case

• from Radiomuseum.org
• Model: Echo 636 - GMR G.M.R., Georg, Montastier

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 480 x 405 x 300 mm / 18.9 x 15.9 x 11.8 inch

• Notes

• Beleuchtetes Abstimmanzeige-Instrument (Réglage Visuel); 6 Lämpchen (Dial);
  Zuführung Antenne und Erde wird geklemmt, keine Buchsen.

• Net weight (2.2 lb = 1 kg)
• 13 kg / 28 lb 10.1 oz (28.634 lb)

• External source of data
• Serge Laffont/Martin Renoth

• Literature/Schematics (1)
• -- Schematic

• Literature/Schematics (2)
• Le grand livre de la TSF (Doctsf Ref 910)

• Other Models

• Here you find 130 models, 103 with images and 30 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from GMR (G.M.R.), Georg, Montastier et Rouge; Montrouge, Paris