• Country
• United States of America (USA)

• Manufacturer / Brand
• Walbert Manufacturing Company; Chicago, IL

• Year
• 1925

• Category
• Radio part (not a module) 

• Radiomuseum.org ID
• 173871

• • Brand: Isofarad

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• - - No sound reproduction output.

• Material
• Various materials

• from Radiomuseum.org
• Model: SLF Vernier Dial - Walbert Manufacturing Company;

• Notes
• Advertising: Easily installed. Concentric mounting. Takes standard shaft-projection. No friction mounting (no slippage). Heavy gears (smooth action). All-bakelite knob. Nickel-silver dial (not plated). Precision graduation. Hairline pointer.

• Literature/Schematics (1)
• Radio News ((October 1925, p. 504))

• Author
• Model page created by Karlheinz Gützlaff. See "Data change" for further contributors.

• Other Models

• Here you find 21 models, 6 with images and 1 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Walbert Manufacturing Company; Chicago, IL