- Land
- USA
- Hersteller / Marke
- Philco, Philadelphia Stg. Batt. Co.; USA
- Jahr
- 1949
- Kategorie
- Rundfunkempfänger (Radio - oder Tuner nach WW2)
- Radiomuseum.org ID
- 50941
Upright open position for normal operation.
Back side; closed.
Sams Photofact Folders reference picture.
Chassis front.
Chassis rear.
Chassis bottom.
Klicken Sie auf den Schaltplanausschnitt, um diesen kostenlos als Dokument anzufordern.
- Anzahl Röhren
- 5
- Hauptprinzip
- Superhet allgemein; ZF/IF 455 kHz; 1 NF-Stufe(n)
- Wellenbereiche
- Mittelwelle, keine anderen.
- Betriebsart / Volt
- Allstromgerät / 105 - 120 Volt
- Lautsprecher
- Dynamischer LS, keine Erregerspule (permanentdynamisch) / Ø 4 inch = 10.2 cm
- Material
- Plastikgehäuse (nicht Bakelit), Thermoplast
- von Radiomuseum.org
- Modell: 49-603 - Philco, Philadelphia Stg. Batt
- Form
- Tischmodell, Zusatz nicht bekannt - allgemein.
- Abmessungen (BHT)
- 10.25 x 6.5 x 3 inch / 260 x 165 x 76 mm
- Bemerkung
- Hand Bag radio, to be opened and set up on edge for operation to provide required heat dissipation.
- Datenherkunft extern
- Ernst Erb
- Datenherkunft
- Collector's Guide to Antique Radios 4. Edition
- Schaltungsnachweis
- Rider's Perpetual, Volume 18 = 1949 and before
- Literaturnachweis
- The Radio Collector's Directory and Price Guide 1921 - 1965
- Literatur/Schema (1)
- Photofact Folder, Howard W. SAMS (Date 4-49, Set 59, Folder 15)
- Weitere Modelle
-
Hier finden Sie 4041 Modelle, davon 2218 mit Bildern und 3690 mit Schaltbildern.
Alle gelisteten Radios usw. von Philco, Philadelphia Stg. Batt. Co.; USA
Sammlungen
Das Modell 49-603 befindet sich in den Sammlungen folgender Mitglieder.
Forumsbeiträge zum Modell: Philco, Philadelphia: 49-603
Threads: 1 | Posts: 1
This interesting compact Philco folds into the shape of a book or small old-style purse when not in use.
The tuning capacitor shaft includes a ball bearing vernier drive reduction system. Typically, the grease has solidified so that the knob appears to operate on a solid shaft with just 1/2 turn tuning range. In this condition, tuning is tricky, and the mechanical mounting of the tuning capacitor seems to be too flimsy for the amount of force that needs to be applied against the knob.
The grease can be softened by applying penetrating oil, followed by a lot of rotation of the shaft. I used a drill to spin the shaft at moderate speed (it is OK to turn beyond the end of the tuning range, at which point the shaft slips as it was designed to) and work the oil into the bearing. After a few minutes, the oil and grease properly lubricate the vernier system, and the tuning has a much more pleasant feel. The mechanical reduction of the vernier means that the knob rotates many full turns to get from one end of the tuning range to the other.
Thomas Albrecht, 05.Sep.10