• Country
• United States of America (USA)

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

• Year
• 1936/1937

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 33039

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

• Number of Tubes
• 5

• Valves / Tubes
• 6A7 78 75 42 80

• Main principle
• Superheterodyne (common); ZF/IF 456 kHz

• Tuned circuits
• 6 AM circuit(s)

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

• Power type and voltage
• Alternating Current supply (AC) / 110 - 125 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 8 inch = 20.3 cm

• Power out
• 3.5 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 527 Rhythm Senior - Arvin, brand of Noblitt-Sparks

• Shape
• Console with any shape - in general

• Dimensions (WHD)
• 19.75 x 35 x 9.875 inch / 502 x 889 x 251 mm

• Notes
• The models 517 and 527 share the same chassis - with suffix "B" they are battery sets with an other chassis but the same cabinet than the same without "B". The Arvin model 527 Rhythm Senior with 6 3/16 inch dial from Noblitt-Sparks covers 545 - 171 meters (550 - 1750 kc = incl 1600 to 1700 police bands) and 16.65 - 52.6 meters (5.7 - 18 mc). One electro dynamic speaker 8 inch. 2-gang condenser, 2-point tone control. Cabinet in rich-grained walnut in combinations with pencil-striped mahogany and satin wood.
  
  Rider's shows that the chassis has been published 1936 (or before). The Belknap Hardware & Manufacturing Co. Catalog of 1937 features this model as E-527 Rhythm Senior and sets a price of $ 99.90. Pages 1053 to 1056 show a whole model family for "Rhythm". The family is in that catalog shown with a prefix E- whereas schematics and other ads show the models without this prefix. The "E" could refer to this catalog only since also a storage battery U17 or U175D is here called E-U17 and E-U175D. But we have to add the prefix so that users do find if they put it in.

• 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 Complete Price Guide to Antique Radios: Pre-War Consoles

• Other Models

• Here you find 694 models, 484 with images and 550 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Arvin, brand of Noblitt-Sparks Industries