Predicta Holiday G4242M Ch= 9L37

Philco, Philadelphia Stg. Batt. Co.; USA

Dati
Forum
Immagini
Collezioni

  • Anno
  • 1959 ?
  • Categoria
  • Televisore (TV) / Monitor
  • Radiomuseum.org ID
  • 104838

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 Specifiche tecniche

  • Numero di tubi
  • 16
  • Principio generale
  • Supereterodina (in generale); ZF/IF 45750 kHz
  • Gamme d'onda
  • Gamme d'onda nelle note.
  • Tensioni di funzionamento
  • Alimentazione a corrente alternata (CA) / 110-120 Volt
  • Altoparlante
  • AP magnetodinamico ellittico (magnete permanente e bobina mobile). / Ø 4 inch = 10.2 cm
  • Materiali
  • Vari materiali
  • Radiomuseum.org
  • Modello: Predicta Holiday G4242M Ch= 9L37 - Philco, Philadelphia Stg. Batt
  • Forma
  • Soprammobile con qualsiasi forma (non saputo).
  • Dimensioni (LxAxP)
  • 23.5 x 27.5 x 14.5 inch / 597 x 699 x 368 mm
  • Annotazioni
  • The Philco G4242M is a 21" b/w TV with US standard VHF tuner channels 2 thru 13. Equipped with chassis 9L37, VHF tuner T-68G and picture tube 21EAP4 or SF21A. Cabinet is Mahogany. Swiveling top-mount CRT enclosure. Built-in telescoping antenna. NOTE: a common replacement CRT for the 4242 is the 21FDP4 (this requires a slight mod to the filament circuit as it is a 6.3V heater as compared to the original 2.3V; the mod: a short across the 8 ohm section of the filament resistor)
  • Fonte dei dati
  • - - Data from my own collection
  • Letteratura / Schemi (2)
  • - - Manufacturers Literature
  • Autore
  • Modello inviato da Thomas Albrecht. Utilizzare "Proponi modifica" per inviare ulteriori dati.

 Collezioni | Musei | Letteratura

Collezioni

Il modello Predicta Holiday G4242M fa parte delle collezioni dei seguenti membri.

Musei

Il modello Predicta Holiday G4242M può essere visto nei seguenti musei.

 Forum

Discussioni nel forum su questo modello: Philco, Philadelphia: Predicta Holiday G4242M Ch= 9L37

Argomenti: 1 | Articoli: 1

In order to make the picture tube housing more compact for its Predicta line of TVs, Philco created a new cathode ray tube (CRT) design with a very compact electron gun and a short tube neck.  Unfortunately, CRTs with this new design turned out to have a very short life.  CRTs failed after only a few years of use, severely damaging Philco's reputation in the TV business, and contributing to Philco's exit from the TV business and sale of the company to Ford.

Today, almost all Predictas which have the original tube intact have low emission on the CRT.  When testing, be careful, since the 21EAP4/SF21A CRT has a 2.5 volt heater (unlike almost all other CRTs from that era, which have 6.3 volt heaters).  Applying 6 volts can burn out the heater.  If the CRT is bad, there are several companies that rebuild CRTs, and the Predicta, with its relatively high value among collectors, is one of the few sets for which CRT rebuilding makes economic sense.

Tom

Thomas Albrecht, 03.Sep.06

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