Jump to content United States-English
HP.com Home Products and Services Support and Drivers Solutions How to Buy
» Contact HP
HP.com home
About us  >  History  >  Virtual museum

Harmonic Wave Analyzer 300A, 1941


Company information

» About us
» History
  » HP Timeline
    » Virtual museum
»Early instruments
»Personal systems
» Imaging and printing
» Chronological order
    » HP garage
    » Measure Magazine
    » HP Journal
    » Origins video
    » FAQ

Content starts here

» Virtual tour

Take this product for an interactive spin. The QuickTime plug-in is needed to view this presentation.

Click to go to download the QuickTime plugin.

» Six views

View this product from six static angles.
Click to go to larger photo of the Harmonic Wave Analyzer 300A.
The 300A measured the individual harmonic in the output voltage of an amplifier.

The 300A measured the individual harmonic present in the output voltage of an amplifier. It consisted of a balanced detector, a local oscillator and a tuned amplifier. Galvin Manufacturing Company, maker of Motorola radio equipment, was an early customer.

Note the wooden case. In the early 1940s it was customary to have measurement equipment in wooden cabinets. Most cabinets were made of walnut, but Bill Hewlett and Dave Packard decided to use oak. As HP enlarged its line, Bill and Dave gave up using wood because it served no useful purpose and added to the cost.

Printable version
Privacy statement Using this site means you accept its terms Feedback to webmaster
© 2012 Hewlett-Packard Development Company, L.P.