• Country
• United States of America (USA)

• Manufacturer / Brand
• Crosley Radio Corp.; Cincinnati (OH)

• Year
• 1938–1940

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 217070

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

• Number of Tubes
• 5

• Valves / Tubes
• 6A8G 6U7G 6Q7G 25A6G or 25L6G 25Z6G

• Number of Transistors

• Semiconductors
• W-46773

• Main principle
• Superheterodyne (common); ZF/IF 455 kHz; 2 AF stage(s)

• Tuned circuits
• 6 AM circuit(s)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• AC/DC-set / AC 50 to 60 cycles, 100 to 125V or DC 100 to 125 Volt

• Loudspeaker
• Electro Magnetic Dynamic LS (moving-coil with field excitation coil) / Ø 5 inch = 12.7 cm

• Power out
• 2 W (unknown quality)

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Super Sextette 648A Ch= 648 - Crosley Radio Corp.;

• Shape
• Tablemodel with Push Buttons.

• Dimensions (WHD)
• 11.25 x 8.25 x 6.5 inch / 286 x 210 x 165 mm

• Notes

• The Crosley Super Sextette 648A is an AC/DC operated 5 tube superheterodyne BC band receiver.  The BC band tuning range is from 540 to 1725kHz.  Uses ballast tube W-46773 (Named in the tube list but not counted in the tube count).  A 455kHz wavetrap was installed on some of these models.  Model 648A is part of the 648 model family, which all use the 648 chassis and require an external antenna.  The 648 model family was improved by adding a built-in loop antenna, whose models then became the 649 model family. Crosley advertising promoted the 649 model family with the statement: "Newly developed loop antenna is built-in".

  These models have 4 large push buttons used for station selection and have a gold etched vertical dial.  The Crosley model 648A is in Brown, model 648B in Ivory, model 648C in Red, model 648D DeLuxe (in Walnut Veneer wooden cabinet), model 648E in Blue and model 648F in Tan. The same cabinet and colors apply for the 649 model family plus a model 5648 in a wooden cabinet also having a slightly different built-in loop antenna and the addition of an electrostatic shield.

  The 649 model family (along with model 5648) were also available for use with a 25 cycle, 100 to 125V power source, where a 100 ohm, 2w resistor was added to the chassis along with the substitution of a larger 60uF filter capacitor in the power supply circuit.
  Please look up common information here for this season.

• Net weight (2.2 lb = 1 kg)
• 7.9 lb (7 lb 14.4 oz) / 3.587 kg

• Price in first year of sale
• 14.99 $

• Mentioned in
• Machine Age to Jet Age III

• Literature/Schematics (1)
• Rider's Perpetual, Volume 10 = 1939 and before (Riders Crosley 10-15, 16)

• Literature/Schematics (2)
• Crosley Radio Service Manual (Crosley Radio Service Manual 1943 and Earlier, Pages 347-348)

• Literature/Schematics (3)
• Crosley Folder (no number), Season 1939/40.

• Literature/Schematics (4)
• - - Manufacturers Literature (Crosley Sevice Supplement No. 205)

• Author
• Model page created by Greg Mercurio. See "Data change" for further contributors.

• Other Models

• Here you find 1791 models, 1048 with images and 1282 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Crosley Radio Corp.; Cincinnati (OH)