• Country
• United States of America (USA)

• Manufacturer / Brand
• Simpson Electric Co.; Chicago, IL - Lac du Flambeau, WI

• Year
• 1974 ??

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 193669

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

• Number of Tubes
• 6

• Valves / Tubes
• 6C4 6C4 6AK5 6AK5 6J6 5Z4

• Main principle
• none

• Wave bands
• Wave Bands given in the notes.

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

• Loudspeaker
• - - No sound reproduction output.

• Material
• Metal case

• from Radiomuseum.org
• Model: TV-FM Signal Generator 479L - Simpson Electric Co.; Chicago,

• Shape
• Tablemodel, low profile (big size).

• Dimensions (WHD)
• 355 x 430 x 190 mm / 14 x 16.9 x 7.5 inch

• Notes
• Two precision vernier dials, 20:1 knob to pointer ratio 1000 divisions logging scale. Horiz/vert signal amp output to oscilloscope. Three range RF generator with amplitude modulator 400 cycles audio oscillator with external input. x 1, x 10, x 100, x 1000 and max output attenuator rotative switch. RF modulator function Standby and operate position swich Phasing and blanking circuit AM generator Range: Band A: Fundamental > 3.3 to 7.8 MHz, second harmonic > 6.6 to 15.6 MHz Band B: Fundamental > 15 to 38 MHz, second harmonic > 30 to 76 MHz Band C: Fundamental > 75 to 125 MHz, second harmonic > 150 to 250 MHz FM generator Range: Band A: Fundamental > 5 to 120 MHz, second harmonic > 10 to 240 MHz Band B: Fundamental > 140 to 260 MHz, second harmonic > 280 to 520 MHz

• Net weight (2.2 lb = 1 kg)
• 15.2 kg / 33 lb 7.7 oz (33.48 lb)

• Author
• Model page created by Dirson Willig. See "Data change" for further contributors.

• Other Models

• Here you find 148 models, 131 with images and 60 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Simpson Electric Co.; Chicago, IL - Lac du Flambeau, WI