• Country
• Italy

• Manufacturer / Brand
• Geloso SA; Milano

• Year
• 1969 ??

• Category
• Amateur-Receiver (amateur bands, may include broadcast bands)

• Radiomuseum.org ID
• 317492

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

• Number of Tubes
• 9

• Valves / Tubes
• 6BZ6 12AT7 12AT7 6BE6 ECH81 EF89 12AX7 6BE6 ECL86 0A2

• Main principle
• Superhet, double/triple conversion

• Wave bands
• Short Wave (SW only)

• Power type and voltage
• Alternating Current supply (AC) / 110-240 Volt

• Loudspeaker
• - This model requires external speaker(s).

• Material
• Metal case

• from Radiomuseum.org
• Model: Ricevitore professionale per le gamme radiantistiche G 4/216 MKIII - Geloso SA; Milano

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

• Dimensions (WHD)
• 400 x 205 x 300 mm / 15.7 x 8.1 x 11.8 inch

• Notes

• Diodi impiegati: ZF10 zener, 5xBY126, OA81, 2xBA100, BA102 varicap

  N. 7 Quarzi impiegati:  467 KHz, 3500 KHz, 11 Mc, 25 Mc, 18 Mc, 20 Mc, 36 Mc

  Gamme coperte: 10 m (28-30 MHz); 15 m (21-21,5 MHz); 20 m (14-14,5 MHz); 40 m (7-7,5 MHz); 80 m (3,5-4 MHz); Gamma C 144-146 MHz (26-28 MHz) con convertitore estero.

  Questo ricevitore si differenzia dal suo predecessore G 4/216 per le migliorie apportate consistenti in ritocchi alle costanti dei circuiti del rivelatore a prodotto, del C.A.V., del "noise-limiter" e dell'oscillatore a quarzo di prima conversione, mentre le differenze meccaniche consistono nell'adozione di una demoltiplica di nuovo tipo, avente un rapporto globale di 1:96

  Shortwave receiver similar to it's predecessor G 4-216, all options usually sold separately as AVC, Noise limiter and Cristal calibrator are already included.

  Covers 80 - 10 m ham bands, the 2 m amateur band (144 - 146 MHz) only with an external converter.

   

• Net weight (2.2 lb = 1 kg)
• 11 kg / 24 lb 3.7 oz (24.229 lb)

• Mentioned in
• Bollettino tecnico Geloso dedicato al ricevitore G 4/216 MKIII

• Literature/Schematics (1)
• Bollettino tecnico Geloso dedicato al ricevitore G 4/216 MKIII

• Author
• Model page created by Giovanni Pugnaghi. See "Data change" for further contributors.

• Other Models

• Here you find 956 models, 803 with images and 724 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Geloso SA; Milano