• Country
• Italy

• Manufacturer / Brand
• Unaohm Start, Ohm, E. Pontremoli; Milano

• Year
• 1951 ?

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 282703

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

• Wave bands
• - without

• Power type and voltage
• Alternating Current supply (AC) / 110-220 Volt

• Loudspeaker
• - - No sound reproduction output.

• Material
• Wooden case

• from Radiomuseum.org
• Model: Tester Provavalvole GB21 - Unaohm Start, Ohm, E.

• Shape
• Tablemodel, with any shape - general.

• Notes

• Tre funzioni: Tester - Capacimetro - Provavalvole.                                                            Resistenza interna : 5000 Ω/V.

  Portate:

  • Volt CC: 3 - 10 - 30 - 100 - 300 - 1000.
  • Volt CA: 3 - 10 - 30 - 100 - 300 - 1000.
  • mA CC:  3 - 10 - 30 - 100 - 300 - 1000.
  • Ω: da 50 Ω a 5 MΩ in 2 portate.
  • Capacità: da 20.000 pF a 20 µF.

  Il provavalvole funziona con combinazioni di pulsanti riportate su di un rullo ove le medesime sono indicate per ogni valvola. 

• Mentioned in
• -- Original prospect or advert (L'Antenna, n.5, maggio 1951)

• Author
• Model page created by Angelo Vannini. See "Data change" for further contributors.

• Other Models

• Here you find 172 models, 148 with images and 72 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Unaohm Start, Ohm, E. Pontremoli; Milano