CPC Subgroup
H03B 5/36 active element in amplifier being semiconductor device ( , H03B5/38 take precedence)
Full Title
Generation of oscillations using amplifier with regenerative feedback from output to input (H03B9/00, H03B15/00 take precedence) > with frequency-determining element being electromechanical resonator > being a piezoelectric resonator (selection of piezoelectric material H10N30/00) > active element in amplifier being semiconductor device ( , H03B5/38 take precedence)
3 direct subcodes
Child Classifications
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