• Year
  • 1934/1935
  • Category
  • Broadcast Receiver - or past WW2 Tuner
  • Radiomuseum.org ID
  • 97408

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

 Technical Specifications

  • Number of Tubes
  • 3
  • Main principle
  • Superheterodyne (common); ZF/IF 470 kHz; Super, reaction, but not adjustable
  • Tuned circuits
  • 4 AM circuit(s)
  • Wave bands
  • Broadcast only (MW).
  • Power type and voltage
  • Alternating Current supply (AC) / 110-220 Volt
  • Loudspeaker
  • Electro Magnetic Dynamic LS (moving-coil with field excitation coil)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Mastini 670M - Phonola SA, FIMI; Saronno VA
  • Shape
  • Tablemodel, high profile (upright - NOT Cathedral nor decorative).
  • Dimensions (WHD)
  • 300 x 310 x 190 mm / 11.8 x 12.2 x 7.5 inch
  • Notes
  • Altoparlante prodotto su licenza Magnavox. Il nome "Mastini" indica il proprietario del brevetto di cui era provvisto questo modello. Si trattava di un meccanismo per il funzionamento a moneta, visibile nelle foto. Spesso venivano modificate per usare due distinte valvole raddrizzatrice e finale in luogo della multipla RT450, divenuta con gli anni di difficile reperibilità. Lo schema riporta valvola R450 anziché RT450.

    Speaker built on Magnavox license. This model was often provided with a built-in mechanism for coin operation. Most of these radios were later modified for using two separate rectifier and output tubes to replace the multi-function tube RT450 (a scarce tube because it has been built just for a short time by a single maker, Zenith).

  • Literature/Schematics (1)
  • -- Schematic
  • Literature/Schematics (2)
  • Elettronica Flash, n. 200, dicembre 2000
  Mastini's Patent for coin-operated radio 2496 KB
  • Documents regarding this model
  • Author
  • Model page created by Alessandro De Poi. See "Data change" for further contributors.

 Collections | Museums | Literature


The model Mastini is part of the collections of the following members.