DIFF Subgroup
H03K 4/12 in which a sawtooth voltage is produced across a capacitor
Introduced: September 1968
Full Title
Generating pulses having essentially a finite slope or stepped portions > having triangular shape > having sawtooth shape > using as active elements vacuum tubes only > in which a sawtooth voltage is produced across a capacitor
IPC and CPC are identically structured here. All 5 subcodes exist in both systems.
Child Classifications
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- H03K 4/14 using two tubes so coupled that the input of each one is derived from the output of the other, e.g. multivibrator IPC+CPC Available in IPC and CPC
- H03K 4/16 using a single tube with positive feedback through transformer, e.g. blocking oscillator IPC+CPC Available in IPC and CPC
- H03K 4/18 using a single tube exhibiting negative resistance between two of its electrodes, e.g. transitron, dynatron IPC+CPC Available in IPC and CPC
- H03K 4/20 using a tube with negative feedback by capacitor, e.g. Miller integrator IPC+CPC Available in IPC and CPC