DEVELOPMENT OF LINEAR POWER TUBES.
Abstract
Grid voltage-plate current transfer curves were analyzed using computer techniques to determine third and fifth order intermodulation distortion products. A total of five experimental tetrodes capable of 44 kW PEP output were analyzed as well as one standard production 4CV100,000C. Most transfer curves were taken using the operating conditions within the range of the contractual requirements. Some tests, however, were made outside of this allowable range to gather data useful in the design of new models. The data points used to plot the grid voltage, plate current transfer curve are obtained using a grid-pulsed curve plotter. Intermodulation distortion ratios of 45 db third and fifth order were achieved on a modified 4CX35,000 at the 44kW PEP output level. The operating conditions were: E sub b = 12 kv, E sub c2 = 1300 V and I sub bo = 2.8 amperes. Operating the same tube at a lower screen voltage resulted in the same intermodulation distortion ratios at a lower value of zero signal plate current (I sub bo = 2.5 A). (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 16, 1968
- Accession Number
- AD0675496
Entities
People
- Gordon E. Liljegren
- William H. Sain