• Country
• Netherlands

• Manufacturer / Brand
• Philips; Eindhoven (tubes international!); Miniwatt

• Year
• 1944 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 181166

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

• Number of Tubes
• 1

• Valves / Tubes
• EF6

• Wave bands
• - without

• Power type and voltage
• Storage and/or dry batteries / 4 x 1.5 & 45 V Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: Preamplifier for Oscillograph GM-4570 - Philips; Eindhoven tubes

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 280 x 210 x 230 mm / 11 x 8.3 x 9.1 inch

• Notes
• External Preamplifier for Oscillograph Philips GM 3156.

• Net weight (2.2 lb = 1 kg)
• 4 kg / 8 lb 13 oz (8.811 lb)

• Source of data
• -- Original prospect or advert

• Author
• Model page created by a member from SK. See "Data change" for further contributors.

• Other Models

• Here you find 5233 models, 4365 with images and 3445 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philips; Eindhoven (tubes international!); Miniwatt