Early layouts would have used analog circuitry and infrequently right utilized a community of capacitors, resistors, and thermistors to immediately control the frequency of oscillation. Such a circuit incorporated both blocks to the diagram from the payment network as well as crystal frequency pulling block. Kyocera is a leading manufacturer https://tcxo-oscillators18649.free-blogz.com/78330359/temperature-compensated-crystal-oscillators-no-further-a-mystery