The Andover 23B1

• Country
• United States of America (USA)

• Manufacturer / Brand
• Sylvania (Hygrade, GTE, Nilco); Emporium (PA)

• Year
• 1952 ?

• Category
• Television Receiver (TV) or Monitor

• Radiomuseum.org ID
• 126038

• Picture
• Schematics

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

• Number of Tubes
• 25

• Valves / Tubes
• 6CB6 6J6 6AU6 6BA6 6BA6 6BC5 6AL5 6BF5 6SN7GT 6AU6 6AU6 6T8 6V6GT 12AX7 6BL7GT 6AL5 6AU6 6SN7GT 6CD6G 6W4GT 5642 5642 5U4G 5U4G 20DP4A

• Main principle
• Superhet with RF-stage

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 60Hz, 117V=110-120 Volt

• Loudspeaker
• Permanent Magnet Dynamic (PDyn) Loudspeaker (moving coil)

• Material
• Wooden case

• from Radiomuseum.org
• Model: The Andover 23B1 - Sylvania Hygrade, GTE, Nilco;

• Shape
• Console, Lowboy (legs < 50 %).

• Notes

• Sylvania model 23B1 is a 21” b/w TV with US standard VHF tuner channels 2 thru 13.
  Equipped with chassis 1-387-1, VHF tuner 323-0009 and picture tube 20DP4A.

• Source of data
• -- Original prospect or advert

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 154, folder 12, dated 1951)

• Literature/Schematics (2)
• Photofact Folder, Howard W. SAMS (Set 174, folder 1, dated 7-52)

• Author
• Model page created by a member from A. See "Data change" for further contributors.

• Other Models

• Here you find 1087 models, 455 with images and 956 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sylvania (Hygrade, GTE, Nilco); Emporium (PA)