• Country
• United States of America (USA)

• Manufacturer / Brand
• Philco, Philadelphia Stg. Batt. Co.; USA

• Year
• 1935

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 18838

Click on the schematic thumbnail to request the schematic as a free document.

• Number of Tubes
• 8

• Valves / Tubes
• 78 6A7 78 75 42 42 42 80

• Main principle
• Superhet with RF-stage; ZF/IF 460 kHz

• Wave bands
• Broadcast, Long Wave and 2 x Short Wave.

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil)

• Power out
• 10 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 650B [Late] - Philco, Philadelphia Stg. Batt

• Shape
• Tablemodel, Tombstone = decorative upright, not cathedral but can have rounded edges.

• Notes
• The cabinet style shown in the picture attached here is not documented by Ramirez, but is plausible in that this cabinet style was used on other tombstones starting in 1936. This type of cabinet was used on the model 655B tombstone, which was the 1936 follow-on of the 650B. See notes for model "650B Common" for further information on the model 650 series.

• External source of data
• E. Erb 3-907007-36-0

• Circuit diagram reference
• Die «Thali Schemasammlung» führt das Modell.

• Mentioned in
• Philco Radio 1928-1942

• Literature/Schematics (1)
• Rider's Perpetual, Volume 6 = 1935 and before (Philco Service Bulletin # 220; Philco Wiring Diagrams, Parts Lists, and Essential Serv. Data 1928-36)

• Other Models

• Here you find 4063 models, 2220 with images and 3710 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philco, Philadelphia Stg. Batt. Co.; USA