200X Gothic
Philco, Philadelphia Stg. Batt. Co.; USA
- Produttore / Marca
- Philco, Philadelphia Stg. Batt. Co.; USA
- Anno
- 1934/1935
- Categoria
- Radio (o sintonizzatore del dopoguerra WW2)
- Radiomuseum.org ID
- 50478
Clicca sulla miniatura dello schema per richiederlo come documento gratuito.
- Numero di tubi
- 10
- Principio generale
- Supereterodina con stadio RF; ZF/IF 175 kHz
- Gamme d'onda
- Solo onde medie (OM).
- Tensioni di funzionamento
- Alimentazione a corrente alternata (CA) / 115 Volt
- Altoparlante
- AP elettrodinamico (bobina mobile e bobina di eccitazione/di campo)
- Potenza d'uscita
- 15 W (qualità ignota)
- Materiali
- Mobile in legno
- Radiomuseum.org
- Modello: 200X Gothic - Philco, Philadelphia Stg. Batt
- Forma
- Console di qualsiasi tipo
- Annotazioni
- The Philco model 200X (1934-35) was one of the industry's first high fidelity radios. The ten-tube single band chassis has variable IF bandwidth to trade off selectivity versus fidelity, controlled by a three-gang potentiometer to adjust the Q of the two of the IF transformers and the gain of the mixer stage. Unlike most radios of its day, which were restricted to about 4 kHz of audio bandwidth, the 200X has 7.5 kHz of bandwidth at its maximum fidelity setting. The circuit includes a 10 kHz audio filter to remove the high pitched heterodyne that could be caused by the carrier of an adjacent channel. The chassis has a shadow meter (tuning aid) with its own dedicated control tube (unlike other Philco designs where the shadow meter simply indicates B+ current to the RF and/or IF stages). The push-pull output stage, with one 42 driver tube and two 42 output tubes, delivers 15 watts of undistorted output.
The cabinet is a floor-type console with inclined sounding board.
Philco also introduced another high fidelity model in 1934 - the 201X. It was similar to model 200X but had two bands (BC + SW).
- Prezzo nel primo anno
- 200.00 $
- Fonte esterna dei dati
- Ernst Erb
- Fonte dei dati
- Collector's Guide to Antique Radios 4. Edition
- Riferimenti schemi
- Rider's Perpetual, Volume 5 = ca. 1934 and before
- Letteratura / Schemi (1)
- Philco Radio 1928-1942 (Philco 1928-36 Wiring Diagrams, Parts Lists, and Essential Service Data)
- Letteratura / Schemi (2)
- Pre-War Consoles
- Altri modelli
-
In questo link sono elencati 4089 modelli, di cui 2223 con immagini e 3736 con schemi.
Elenco delle radio e altri apparecchi della Philco, Philadelphia Stg. Batt. Co.; USA