Velvet Vernier Dial A Dial

National Company; Cambridge & Malden (MA)

  • Anno
  • 1924–1945
  • Categoria
  • Parte di radio (ma non modulo a sè stante)
  • Radiomuseum.org ID
  • 224296
    • alternative name: National Toy Co.
    • Brand: Thrillbox

 Specifiche tecniche

  • Gamme d'onda
  • - senza
  • Tensioni di funzionamento
  • Alimentazione non richiesta
  • Altoparlante
  • - - Nessuna uscita audio.
  • Materiali
  • Bachelite
  • Radiomuseum.org
  • Modello: Velvet Vernier Dial A Dial - National Company; Cambridge &
  • Dimensioni (LxAxP)
  • 4 x 4 x 0 inch / 102 x 102 x 0 mm
  • Annotazioni
  • The National Type A Dial was one of the first radio products made by the National Company. It was originally produced for Browning-Drake, but quickly became a mainstay for National. Along with the National Type B Dial, it was generally known as the "Velvet Vernier" dial.

    It has a planetary drive with a 4 to 1 ration, and was available in two sizes: 4-inch diameter and 3 3/8-inch diameter.

    The 1945 National Catalog was the last appearance of the A Dial.

  • Prezzo nel primo anno
  • 2.50 USD
  • Bibliografia
  • Radio Broadcast, Jun. 1925, p. 280

 Collezioni | Musei | Letteratura

Collezioni

Il modello Velvet Vernier Dial fa parte delle collezioni dei seguenti membri.

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