200X Gothic
Philco, Philadelphia Stg. Batt. Co.; USA
- Pays
- Etats-Unis
- Fabricant / Marque
- Philco, Philadelphia Stg. Batt. Co.; USA
- Année
- 1934/1935
- Catégorie
- Radio - ou tuner d'après la guerre 1939-45
- Radiomuseum.org ID
- 50478
Cliquez sur la vignette du schéma pour le demander en tant que document gratuit.
- No. de tubes
- 10
- Principe général
- Super hétérodyne avec étage HF; FI/IF 175 kHz
- Gammes d'ondes
- PO uniquement
- Tension / type courant
- Alimentation Courant Alternatif (CA) / 115 Volt
- Haut-parleur
- HP dynamique à électro-aimant (électrodynamique)
- Puissance de sortie
- 15 W (qualité inconnue)
- Matière
- Boitier en bois
- De Radiomuseum.org
- Modèle: 200X Gothic - Philco, Philadelphia Stg. Batt
- Forme
- Console de forme générique
- Remarques
- 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).
- Prix de mise sur le marché
- 200.00 $
- Source extérieure
- Ernst Erb
- Source du schéma
- Rider's Perpetual, Volume 5 = ca. 1934 and before
- Schémathèque (1)
- Philco Radio 1928-1942 (Philco 1928-36 Wiring Diagrams, Parts Lists, and Essential Service Data)
- Schémathèque (2)
- Pre-War Consoles
- D'autres Modèles
-
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Tous les appareils de Philco, Philadelphia Stg. Batt. Co.; USA