• Country
• Italy

• Manufacturer / Brand
• Geloso SA; Milano

• Year
• 1965

• Category
• Amateur Transmitter (only)

• Radiomuseum.org ID
• 120320

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

• Number of Tubes
• 13

• Valves / Tubes
• 12AX7 12AT7 12AT7 12BY7 EM87 7360 7360 7360 6CW4 6CB6 6AH6 6146 6146

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Powered by external power supply or a main unit.

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Trasmettitore G 4-225 - Geloso SA; Milano

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

• Dimensions (WHD)
• 520 x 260 x 250 mm / 20.5 x 10.2 x 9.8 inch

• Notes
• Trasmittente solo gamme amatoriali in SSB, DSB, CW, frequenze trasmesse 3,5-4; 7-7,5; 14-14,5; 21-21,5; 28-28,5; 28,5-29; 29-29,5; 29,5-30 MHz. Potenza di uscita 200 watt PEP. Nella apparecchiatura si trovano oltre le valvole: 7 quarzi; Diodi: OA81, 2× BA102.
  Alimentatore -> G4/226

• Price in first year of sale
• 1,420.00 DM

• Mentioned in
• RIM Bastelbuch 1965

• Literature/Schematics (1)
• Bollettino Tecnico Geloso (n.96, primavera 1965)

• Author
• Model page created by Georg Richter. See "Data change" for further contributors.

• Other Models

• Here you find 952 models, 803 with images and 716 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Geloso SA; Milano