• Country
• United States of America (USA)

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

• Year
• 1959 ?

• Category
• Television Receiver (TV) or Monitor

• Radiomuseum.org ID
• 145647

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

• Number of Tubes
• 17

• Valves / Tubes
• 2CY5 5EA8 3BZ6 3BZ6 3BZ6 12BY7A 5BR8 5T8 5AQ5 3CS6 10EG7 3AL5 6CG7 12DQ6A 12AX4GTA 1B3GT 23CP4

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 110 - 120 Volt

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

• from Radiomuseum.org
• Model: 23C21 Ch= 1-544-3 - Sylvania Hygrade, GTE, Nilco;

• Notes
• Channels 2 thru 13 VHF, 14 thru 83 UHF. Caution: One side of AC line connected to chassis. Sams photofact set 477 folder 2 date 3-60 features the Sylvania models 23C17, 23C18, 23C19, 23C20, 23C21, 23T12, 23T13 and 23T14 with chassis 1-544-1, 1-544-2 and 1-544-3 as the same schematic.

• Literature/Schematics (1)
• Photofact Folder, Howard W. SAMS (Set 477 folder 2 date 3-60)

• Author
• Model page created by Peter Hoddow. See "Data change" for further contributors.

• Other Models

• Here you find 1092 models, 455 with images and 958 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Sylvania (Hygrade, GTE, Nilco); Emporium (PA)