• Country
• United States of America (USA)

• Manufacturer / Brand
• Hewlett-Packard, (HP); Palo Alto, CA

• Year
• 1948

• Category
• Service- or Lab Equipment

• Radiomuseum.org ID
• 120627

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

• Number of Tubes
• 17

• Valves / Tubes
• 5654 6L6GB 6SQ7 0A3 5U4GB 6SJ7 6AG7 12-4

• Wave bands
• Wave Bands given in the notes.

• Power type and voltage
• Alternating Current supply (AC) / 115; 230 Volt

• Loudspeaker
• - For headphones or amp.

• Material
• Metal case

• from Radiomuseum.org
• Model: Signal Generator 650A - Hewlett-Packard, HP; Palo Alto

• Shape
• Rack

• Dimensions (WHD)
• 19 x 10.5 x 13.25 inch / 483 x 267 x 337 mm

• Notes

• Test-Oszillator 10 Hz bis 10 MHz. Der Output von 15 mW bezieht sich auf 600 Ohm.

  Model 650A Resistance-tuned Oscillator is the first instrument of its kind that not only covers a frequency range of 10 cps to 10 mc, but brings to the r-f and video fields all the speed. This highly-stable precision instrument provides output flat within ±1 db from 10 cps to 10 mc, and a voltage range of.00003 to 3 volts. Output impedance is 600 ohms, or 6 ohms with 100 to 1 output voltage divider. Instrument includes built-in vacuum tube voltmeter and 50 db output attenuator.

• Net weight (2.2 lb = 1 kg)
• 15 kg / 33 lb 0.6 oz (33.04 lb)

• Price in first year of sale
• 475.00 USD

• Author
• Model page created by Heinz Höger. See "Data change" for further contributors.

• Other Models

• Here you find 391 models, 359 with images and 138 with schematics for wireless sets etc. In French: TSF for Télégraphie sans fil.
  All listed radios etc. from Hewlett-Packard, (HP); Palo Alto, CA