• Paese
• USA (Stati Uniti d'America)

• Produttore / Marca
• Weston Electrical Instrument Co.; Newark, N.J.; (Jewell Electrical Instrument Co.; Chicago, IL)

• Anno
• 1940 ?

• Categoria
• Strumento da laboratorio

• Radiomuseum.org ID
• 235055

• • alternative name: Jewell

Clicca sulla miniatura dello schema per richiederlo come documento gratuito.

• Gamme d'onda
• - senza

• Tensioni di funzionamento
• Alimentazione non richiesta

• Altoparlante
• - - Nessuna uscita audio.

• Materiali
• Bachelite

• Radiomuseum.org
• Modello: AC Voltmeter 433 - Weston Electrical Instrument

• Dimensioni (LxAxP)
• 5.06 x 5.25 x 3.25 inch / 129 x 133 x 83 mm

• Annotazioni

• AC Portable Voltmeter

  Movable Iron Meter Type calibrated for horizontal use.

  Hand calibrated mirror scale

  Bakelite case with carrying strap

  Triple range: 450 - 300 - 150VAC

  Frequency range: 25 to 125 Hz

  Scale lenght 4,04"

  Accuracy within 3/4 of 1%

  Also available in single-rage:  0 - 15VAC

  Weston often used the same model number for a complete series of meters.  Model 433 was available both as an AC ammeter and AC voltmeter. Each series covered individual meters with a variety of ranges.  For example the 433 voltmeter was available in double ranges as 15/30, 30/60, 75/150, 150/300 volts and, obvious from the example pictured, 5/10.  Apparently the model was also available in triple ranges. 

  The same was also true of the 433 ammeters with ranges of 1/2, 2.5/5, 5/10, and 10/20 as shown in the  technical info from the catalog appended to this page.  Thus the 433 "model number" was more a style and form factor with a specification for precision than an exacting model number for an individual meter.

• Peso netto
• 2 lb 5 oz (2.312 lb) / 1.050 kg

• Prezzo nel primo anno
• 103.75 1960

• Autore
• Modello inviato da Dirson Willig. Utilizzare "Proponi modifica" per inviare ulteriori dati.

• Altri modelli

• In questo link sono elencati 186 modelli, di cui 161 con immagini e 98 con schemi.
  Elenco delle radio e altri apparecchi della Weston Electrical Instrument Co.; Newark, N.J.; (Jewell Electrical Instrument Co.; Chicago, IL)