• Country
• United States of America (USA)

• Manufacturer / Brand
• Arvin, brand of Noblitt-Sparks Industries

• Year
• 1939/1940

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 33021

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

• Number of Tubes
• 5

• Valves / Tubes
• 12A8GT 12K7GT 12Q7GT 50L6GT 35Z5GT

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• AC/DC-set / 115 Volt

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

• Power out
• 2 W (unknown quality)

• Material
• Metal case

• from Radiomuseum.org
• Model: 502 Ch= RE-48 - Arvin, brand of Noblitt-Sparks

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Dimensions (WHD)
• 7.5 x 4.75 x 5.35 inch / 191 x 121 x 136 mm

• Notes
• The Arvin model 502 in a metal "Walnut" cabinet and the same in Ivory as model 502A can be seen 1939 at least in two fliers "New 1940 Arvin Radios". The 5-tube AC/DC superhet models have a 30 foot antenna attached. Band coverage of the Arvin 502 and 502A is 540 to 1750 kc which includes some police reception. Power consumption 30 Watts. Illuminated airplane dial, full volume control and 2-gang uning condenser.

• External source of data
• Ernst Erb

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

• Circuit diagram reference
• Rider's Perpetual, Volume 11 = ca. 1940 and before

• Mentioned in
• Guide to Old Radios

• Literature/Schematics (1)
• Table Top Radios Vol. 1 Stein 98 (page 38.)

• Other Models

• Here you find 695 models, 485 with images and 551 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Arvin, brand of Noblitt-Sparks Industries