VHF AND UHF CRYSTAL CONTROLLED OSCILLATORS
Abstract
Accomplishments in instrumentation and oscillator design are reviewed with brief discussions. Of specific concern were methods of controlling temperature and voltage of oscillator units. Temperature control was accomplished by a large crystal oven, modified to hold several transistorized oscillator units. Temperature was meassured by a mercury thermometer calibrated to 0.01 C. Constant voltage for the oscillator units was supplied by transistorized regulated power supplies. Accurate voltage measurements were made with a sensitive dc microvoltmeter arranged to measure the voltage difference between the power supply and a reference battery. Of the 32 transistorized oscillator units constructed, 9 are described. Short-term frequency instabilities of less than 1 part in 10 to the 8th power were possible t frequencies from 100 to about 200 mc. Comparable stabilities at higher frequencies were possible through the use of frequency multipliers. Three tunnel-diode oscillator units, 4 rf amplifier units, 5 frequency multiplier units, and 1 combination amplifier-multiplier unit are described. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 30, 1961
- Accession Number
- AD0267277
Entities
People
- Hugh W. Denny
- Samuel N. Jr. Witt
Organizations
- Georgia Tech