A Note on a Bridged-T Network

A bridged-T network previously employed for the measurement of resistance is analyzed, and is shown to be useful as the frequency-determining element of a resistance-tuned oscillator. The resistance-capacitance form of the network permits a wide tuning range and simple switching between ranges, while the resistance-inductance network suggests the possibility of building an oscillator having decade frequency dials. With both forms of the network a moderate value of equivalent Q can be obtained, which is desirable for accuracy and stability of frequency calibration.