• Country
• United States of America (USA)

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

• Year
• 1936/1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 50538

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

• Number of Tubes
• 5

• Valves / Tubes
• 6A8G 6K7G 6Q7G 6F6G 5Y4G

• Main principle
• Superheterodyne (common); ZF/IF 470 kHz

• Wave bands
• Broadcast and Short Wave (SW).

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

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

• Power out
• 3 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 37-61B [Early] - Philco, Philadelphia Stg. Batt

• Shape
• Table-Cathedral-Type (upright, round top or gothic arch, not rounded edges only).

• Notes

• The Philco model 37-61 series uses a 5-tube 2-band (BC and 5.7-18.2 MHz) chassis similar to that for the 37-60 series. The 37-61 chassis covers a different SW range than the 37-60, and has 2-speed tuning with concentric knobs, another feature not found on the 37-60.
  
  There are four specific models in the series with different cabinet styles. The early version of 37-61B is a cathedral with an arch-shaped profile. The late version of 37-61B is a rectangular tombstone.
  
  The early version of model 37-61F is a floor-type console with a tulip pattern for the speaker opening. The late version of 37-61F has a large rectangular speaker grill with three vertical bars in front of the speaker.

• Price in first year of sale
• 38.00 $

• External source of data
• Ernst Erb

• Source of data
• Collector's Guide to Antique Radios 4. Edition

• Circuit diagram reference
• Rider's Perpetual, Volume 7 = 1936 and before

• Mentioned in
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Literature/Schematics (1)
• Philco Service Bulletin # 246

• Literature/Schematics (2)
• Machine Age to Jet Age II (page 211.)

• Literature/Schematics (3)
• Philco Folder No. PR-430 for 1937.

• Literature/Schematics (4)
• Cathedral & Tombstone Radios (page 193.)

• Other Models

• Here you find 4063 models, 2220 with images and 3711 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Philco, Philadelphia Stg. Batt. Co.; USA