• Paese
• Gran Bretagna (Regno Unito)

• Produttore / Marca
• AJS (Brand) Stevens AJ & Co. (1914) Ltd.; Wolverhampton

• Anno
• 1923

• Categoria
• Altoparlante, cuffia o auricolare

• Radiomuseum.org ID
• 126778

• • Brand: A.J.S.

• Tensioni di funzionamento
• Alimentazione non richiesta

• Altoparlante
• Tromba

• Materiali
• Mobile di metallo

• Radiomuseum.org
• Modello: Standard Horn Loudspeaker - AJS Brand Stevens AJ & Co. 191

• Forma
• Soprammobile con qualsiasi forma (non saputo).

• Dimensioni (LxAxP)
• 0 x 24 x 0 inch / 0 x 610 x 0 mm

• Annotazioni
• The A.J.S started to build loudspeakes at the same time they started to produce radios. The largest and more expensive model was the 24" high 'Standard Loudspeaker' with either a metal or wooden horn. The metal horn came in either a matt black or grained wood finish and the wooden horn was available with oak or mahogany flares.
  
  The STandard horn loudspeaker from A.J. Stevens & Co. Ltd., Wolverhampton use like most loudspekers of that kind a metal diaphragm that is suspended above two pole pieces that are attached to a horseshoe magnet. A coil is wound around each pole piece so that a current flowing through it will vary the magnetic field. The magnetic field attracts the thin diaphragm which bends towards the magnet. When the field is varied by the current in the coils the diaphragm moves. When an audio signal is applied to the coils the diaphragm moves up and down and will move the air in sympathy. The two coils in series will have a DC resistance of about 2000 Ohms.

• Prezzo nel primo anno
• 4.00 £

• Fonte dei dati
• - - Data from my own collection

• Autore
• Modello inviato da Ernst Erb. Utilizzare "Proponi modifica" per inviare ulteriori dati.

• Altri modelli

• In questo link sono elencati 35 modelli, di cui 22 con immagini e 3 con schemi.
  Elenco delle radio e altri apparecchi della AJS (Brand) Stevens AJ & Co. (1914) Ltd.; Wolverhampton