- Produttore / Marca
- Philco, Philadelphia Stg. Batt. Co.; USA
- Anno
- 1949
- Categoria
- Radio (o sintonizzatore del dopoguerra 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.
Clicca sulla miniatura dello schema per richiederlo come documento gratuito.
- Numero di tubi
- 5
- Principio generale
- Supereterodina (in generale); ZF/IF 455 kHz; 1 Stadi BF
- Gamme d'onda
- Solo onde medie (OM).
- Tensioni di funzionamento
- Alimentazione universale (doppia: CC/CA) / 105 - 120 Volt
- Altoparlante
- AP magnetodinamico (magnete permanente e bobina mobile) / Ø 4 inch = 10.2 cm
- Materiali
- Plastica (non bachelite o catalina)
- Radiomuseum.org
- Modello: 49-603 - Philco, Philadelphia Stg. Batt
- Forma
- Soprammobile con qualsiasi forma (non saputo).
- Dimensioni (LxAxP)
- 10.25 x 6.5 x 3 inch / 260 x 165 x 76 mm
- Annotazioni
- Hand Bag radio, to be opened and set up on edge for operation to provide required heat dissipation.
- Fonte esterna dei dati
- Ernst Erb
- Fonte dei dati
- Collector's Guide to Antique Radios 4. Edition
- Riferimenti schemi
- Rider's Perpetual, Volume 18 = 1949 and before
- Letteratura / Schemi (1)
- Photofact Folder, Howard W. SAMS (Date 4-49, Set 59, Folder 15)
- Altri modelli
-
In questo link sono elencati 4041 modelli, di cui 2218 con immagini e 3690 con schemi.
Elenco delle radio e altri apparecchi della Philco, Philadelphia Stg. Batt. Co.; USA
Collezioni
Il modello 49-603 fa parte delle collezioni dei seguenti membri.
Discussioni nel forum su questo modello: Philco, Philadelphia: 49-603
Argomenti: 1 | Articoli: 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