• Country
• United States of America (USA)

• Manufacturer / Brand
• National Company; Cambridge & Malden (MA)

• Year
• 1954

• Category
• Broadcast Receiver - or past WW2 Tuner

• Radiomuseum.org ID
• 123253

• • alternative name: National Toy Co.
  • Brand: Thrillbox

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

• Number of Tubes
• 14

• Valves / Tubes
• 6BQ7A 6X8 6BA6 6BE6 6BA6 6BA6 6AU6 6BN6 6BN6 6AL5 12AX7 6AV6 12AX7 5Y3GT

• Main principle
• Superhet with RF-stage; ZF/IF 455 / 10700 kHz

• Tuned circuits
• 9 AM circuit(s)     16 FM circuit(s)

• Wave bands
• Broadcast (BC) and FM or UHF.

• Power type and voltage
• Alternating Current supply (AC) / 115 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Horizon Criterion AM-FM Tuner NC-1000 - National Company; Cambridge &

• Shape
• Tablemodel, with any shape - general.

• Dimensions (WHD)
• 16.75 x 7 x 11.5 inch / 425 x 178 x 292 mm

• Notes

• The National Horizon Criterion Tuner (NC-1000) is an AM/FM tuner with 0.5uV FM sensitivity and is stereo ready.  It has "Mutamatic" tuning, which eliminates noise and hiss between stations. Two independent channels are used for AM and FM signals, making possible simultaneous listening of both.

  AM Sensitivity: 10uV for 10 db signal-to-noise                                                          Image rejection: Over 60 db                                                                                   Harmonic Distortion: Less than 1.0%                                                                        

  The removeable plate on the front of the Criterion allows for the insertion of the National Horizon 5 Preamplifier.

• Net weight (2.2 lb = 1 kg)
• 32 lb (32 lb 0 oz) / 14.528 kg

• Price in first year of sale
• 169.95 USD

• Mentioned in
• Allied Radio Catalog (Knight) (1955 page 17)

• Literature/Schematics (1)
• The Radio-Electronic Master, 1956

• Author
• Model page created by Emilio Ciardiello. See "Data change" for further contributors.

• Other Models

• Here you find 445 models, 284 with images and 189 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from National Company; Cambridge & Malden (MA)