• Country
• United States of America (USA)

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

• Year
• 1958

• Category
• Amateur Equipment (Other, but not Key)

• Radiomuseum.org ID
• 151221

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

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

• Number of Tubes
• 1

• Valves / Tubes
• 6BH8 0B2

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 117 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Bakelite case

• from Radiomuseum.org
• Model: Frequency Oscillator VFO-62 - National Company; Cambridge &

• Shape
• Tablemodel without push buttons, Mantel/Midget/Compact up to 14

• Dimensions (WHD)
• 6.5 x 5.25 x 5.5 inch / 165 x 133 x 140 mm

• Notes

• The National VFO-62 is a self-powered variable frequency oscillator for 6 and 2 meter operation. The VFO-62 can be connected directly to the crystal socket of existing commercial transmitters. It has a front panel crystal socket, allowing the use of the transmitter's crystal for single channel operation. The VFO-62 is designed to operate with most equipment using crystal oscillators operating in the 8- to 9-mc region, or with most equipment using overtone oscillators in the 25- to 27-mc range. The internal crystal is a 1000 kc, and allows for calibration, along with using headphones. It is housed in a painted bakelite case.

• Net weight (2.2 lb = 1 kg)
• 2.8 kg / 6 lb 2.7 oz (6.167 lb)

• Price in first year of sale
• 69.95 USD

• External source of data
• John Roux

• Mentioned in
• Allied Radio Catalog (Knight) (1959 page 375)

• Author
• Model page created by Ernst Erb. See "Data change" for further contributors.

• Other Models

• Here you find 446 models, 285 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)