There is only one way to create a staccato-wedgy. It is by forcing a capacitor to prohibit its normal ability to periodically discharge by feeding it a non-periodic voltage which never depletes its input (which could give this capacitor an opportunity to discharge). Instead, the capacitor manages to discharge by periodically preventing itself from becoming dominated by this external influence. By cutting off the external power source which normally feeds the hyperbolic amplification function, of this runaway condition of escalation of output towards the infinite oblivion of the circuit (which is hosting this situation), the hyperbolic amplification has periodic opportunities to collapse and, thus, create the staccato-wedgy waveform on the oscilloscope screen.
There are various techniques for creating this waveform.
One method, is to feed A/C voltage to a capacitor of mild capacitance (10nF up to 1mF) through a full diode bridge so that D/C is the output of this diode bridge feeding the capacitor D/C. The diodes will prevent this capacitor from discharging so that on every half cycle, the capacitor will take the opportunity to block its own feeding schedule coming from its source (outside itself) and periodically allow a collapse of input (towards itself) to occur.