Guilford RA-111-A5

DuMont Labs, Allen B., Inc.

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  • Year
  • 1950
  • Category
  • Television- and Radio Receiver, perh. also + Rec. etc. (TV Radio)
  • Radiomuseum.org ID
  • 169914
    • alternative name: Dumont Television & Radio

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

 Technical Specifications

  • Number of Tubes
  • 25
  • Main principle
  • Superheterodyne (common); ZF/IF 26400/21900 kHz
  • Wave bands
  • Wave Bands given in the notes.
  • Power type and voltage
  • Alternating Current supply (AC) / 117 Volt
  • Loudspeaker
  • Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil) / Ø 10 inch = 25.4 cm
  • Power out
  • 1 W (unknown quality)
  • Material
  • Wooden case
  • from Radiomuseum.org
  • Model: Guilford RA-111-A5 - DuMont Labs, Allen B., Inc.
  • Shape
  • Console with any shape - in general
  • Dimensions (WHD)
  • 25.6 x 35.5 x 20.7 inch / 650 x 902 x 526 mm
  • Notes
  • In 1950, DuMont introduced the RA-111A series of 12-inch CRT TVs (or "Telesets" as DuMont called them) to replace the RA-103 line. These models include the 4-gang spiral Mallory-Ware Inductuner introduced on the RA-109 series, which tunes continuously from 44-216 MHz to cover the VHF low (including Channel 1, which was no longer in use), FM radio, and VHF high bands. Like many other DuMont Telesets, a 6AL7GT eye tube serves as a tuning aid. By this time, most other manufacturers had adopted click-type or turret tuners; DuMont stayed with continuous tuners, which makes their sets unique.

    There are four models with different cabinet styles in the RA-111A series: The Putnam table model (RA-111-A1 in mahogany; RA-111-A4 in blonde) and the Guilford open console (RA-111-A2 in mahogany; RA-111-A5 in blonde).
  • Price in first year of sale
  • 330.00 $
  • Source of data
  • -- Original prospect or advert
  • Circuit diagram reference
  • Photofact Folder, Howard W. SAMS
  • Literature/Schematics (1)
  • Rider TV 5-26; SAMS Photofact set 106 folder 6
  • Author
  • Model page created by Thomas Albrecht. See "Data change" for further contributors.

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