• Country
• United States of America (USA)

• Manufacturer / Brand
• Setchell Carlson, Inc.; St.Paul (MN)

• Year
• 1948 ?

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 57796

• • Brand: Doraphone

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

• Number of Tubes
• 4

• Valves / Tubes
• 1R5 1T4 1U5 3V4 NE-2

• Number of Transistors

• Semiconductors
• Selenium-Rectifier

• Main principle
• Superheterodyne (common)

• Wave bands
• Broadcast only (MW).

• Power type and voltage
• AC/DC-set / 115 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 5 inch = 12.7 cm

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Dor-A-fone 458RD - Setchell Carlson, Inc.; St.

• Shape
• Tablemodel with Push Buttons.

• Notes

• Combination superhet receiver and two-way communication system. The intercom uses the audio section of the radio in conjunction with a special input transformer and a switch.

  Includes both master radio and desk extension speaker (both speakers are PM 5"), and a 50-foot speaker extension cord.

  Stein vol 1 error: the model 458RD ist listed as 485R in the index and in the picture legend!

• External source of data
• Ernst Erb

• Source of data
• The Radio Collector's Directory and Price Guide 1921 - 1965

• Circuit diagram reference
• Rider's Perpetual, Volume 20 covering 1950

• Mentioned in
• Collector's Guide to Antique Radios 4. Edition

• Literature/Schematics (1)
• Table Top Radios Vol. 1 Stein 98 (page 141.)

• Literature/Schematics (2)
• Radio News (Aug. 1948, pages 152-153.)

• Other Models

• Here you find 127 models, 70 with images and 99 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Setchell Carlson, Inc.; St.Paul (MN)