One of the improvements was a large, six-inch tuning dial. The 200CD was used for testing servo and vibration systems, medical and geophysical equipment, audio amplifiers, sonar and supersonic apparatus, carrier telephone systems and video frequency circuits. Frequency Range: 5Hz to 600kHz in five ranges.

View and Download HP 200CD operating and servicing manual online. wide range oscillator. 200CD power tool pdf manual download.

The Model 200CD's wide frequency coverage made it very valuable as a general purpose oscillator. Take a virtual tour of this product, see close-up images and read about its history.

HP 200CD Audio Generator (1955) the Hewlett-Packard 200CD is a "wide range oscillator" that generates a sine wave in the subsonic, audio, and ultrasonic frequencies (5 Hz to 600 KHz). I bought my HP 200CD for one task: aligning the second IF (intermediate frequency) section of my Hallicrafters SX-88 communications receiver.

The Hewlett-Packard HP-200CD audio generator will generate sine waves from 5 Hz to a bit over 600 KHz. That puts its upper ranges right into the broadcast band. It uses a balanced version of the famous light-bulb-stabilized wien bridge oscillator developed by -- you guessed it -- William Hewlett who commercialized it with David Packard.

The HP 200CD has the following specifications: Frequency coverage 5 cps to 600 Kc in 5 ranges. 160 mW into 600 ohms or 20 Volts open circuit at 1 % distortion and +/- 1 dB frequency response. The HP200CD remained in the Hewlett-Packard Test and Measurement catalog until 1985, a full 33 years which is rare in the electronics industry.

The HP200CD was a serious competitor in the HP longest product life contest. It remained in the Hewlett-Packard Test and Measurement catalog until 1985, a full 33 years which is rare in the electronics industry. Last, but not least, the 200CD was the last fully vacuum tube instrument produced by HP.

× Hewlett-Packard 200CD Oscillator Big, heavy, all-tube Wein bridge oscillator with a big dial on the front, makes great audio, lowfer signal source (it should anyway) and external BFO

See also Model HP 200CD early with 5 tubes. Frequency range 5 - 600,000 Hz. Model page created by Heribert Jung. See "Data change" for further contributors. Here you find 393 models, 361 with images and 138 with schematics for wireless sets …

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