• Country
• United States of America (USA)

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

• Year
• 1936–1938

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 190877

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) / 115 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 6 inch = 15.2 cm

• Power out
• 3.5 W (unknown quality)

• Material
• Wooden case

• from Radiomuseum.org
• Model: 517 Rhythm Junior [late] - Arvin, brand of Noblitt-Sparks

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

• Dimensions (WHD)
• 13 x 16.5 x 9.25 inch / 330 x 419 x 235 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 early version Arvin model 517 Rhythm Junior is without the three vertical bars on front of the loudspeaker. The Arvin model 517 Rhythm Junior with 6 3/16 inch dial 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 6 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-517 Rhythm Junior and sets a price of $ 69.90. 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.

• Mentioned in
• Table Top Radios Vol. 1 Stein 98 (page 39.)

• Literature/Schematics (1)
• Cathedral & Tombstone Radios (page 54.)

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• 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