Predicta Holiday G4242M Ch= 9L37

Philco, Philadelphia Stg. Batt. Co.; USA

Daten
Forum
Bilder
Sammlungen

  • Jahr
  • 1959 ?
  • Kategorie
  • Fernseh-Empfänger/Monitor
  • Radiomuseum.org ID
  • 104838

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 Technische Daten

  • Anzahl Röhren
  • 16
  • Hauptprinzip
  • Superhet allgemein; ZF/IF 45750 kHz
  • Wellenbereiche
  • Wellen in den Bemerkungen.
  • Betriebsart / Volt
  • Wechselstromspeisung / 110-120 Volt
  • Lautsprecher
  • Dynamischer (permanent) Ovallautsprecher / Ø 4 inch = 10.2 cm
  • Material
  • Diverses Material
  • von Radiomuseum.org
  • Modell: Predicta Holiday G4242M Ch= 9L37 - Philco, Philadelphia Stg. Batt
  • Form
  • Tischmodell, Zusatz nicht bekannt - allgemein.
  • Abmessungen (BHT)
  • 23.5 x 27.5 x 14.5 inch / 597 x 699 x 368 mm
  • Bemerkung
  • 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)
  • Datenherkunft
  • - - Data from my own collection
  • Literatur/Schema (2)
  • - - Manufacturers Literature
  • Autor
  • Modellseite von Thomas Albrecht angelegt. Siehe bei "Änderungsvorschlag" für weitere Mitarbeit.

 Sammlungen | Museen | Literatur

Sammlungen

Das Modell Predicta Holiday G4242M befindet sich in den Sammlungen folgender Mitglieder.

Museen

Das Modell Predicta Holiday G4242M ist in den folgenden Museen zu sehen.

 Forum

Forumsbeiträge zum Modell: Philco, Philadelphia: Predicta Holiday G4242M Ch= 9L37

Threads: 1 | Posts: 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

Weitere Posts (1) zu diesem Thema.