• Country
• United States of America (USA)

• Manufacturer / Brand
• Speak-O-Phone, Recording and Equipment Company; New York City, NY

• Year
• 1939 ??

• Category
• Loudspeaker, headphone or earphone

• Radiomuseum.org ID
• 351224

• Number of Tubes
• 4

• Valves / Tubes
• 6J7 6C8 6V6 5Z4

• Wave bands
• - without

• Power type and voltage
• No Power needed

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 8 inch = 20.3 cm

• Material
• Wooden case

• from Radiomuseum.org
• Model: External Speaker 16-M - Speak-O-Phone, Recording and

• Shape
• Tablemodel, slant panel.

• Notes

• Cabinet alone was 8.45 USD.

• Price in first year of sale
• 16.50 USD

• Mentioned in
• -- Original prospect or advert (Speak-O-Phone General Catalog No. 7-8)

• Author
• Model page created by Ed Riley. See "Data change" for further contributors.

• Other Models

• Here you find 7 models, 4 with images and 4 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Speak-O-Phone, Recording and Equipment Company; New York City, NY