Electronic organ circuit

In an electronic organ provided with a plurality of input keyboard keys, a plurality of stops, plural signal waveform circuits, and keyer circuits operative in response to actuation of selected keys for coupling signal waveforms to keyer output circuitry, wherein said keyers are effective for gating the signal waveforms to provide predetermined voice effects,

• means for providing a plurality of pulse inputs at different times on a cyclic basis for operating a given keyer, each of said pulse inputs being representative of a different stop wherein the duty cycle of each of said plurality of pulse inputs is controlled to produce the effect of a different stop,
• ones of the said plurality of pulses being applied to said given keyer when the corresponding stops as well as keyboard keys are actuated for playing said corresponding stops.

In an electronic organ provided with a plurality of input keyboard keys, plural signal waveform circuits, and keyer circuits operative in response to actuation of selected keys for coupling signal waveforms to keyer output circuitry, wherein said keyers are effective for gating the signal waveforms to provide predetermined voice effects,

• a plurality of registers receiving information in response to keyboard key information and connected for actuating selected keyers to an on condition in response to keyboard key operation,
• means for coupling outputs of plural registers for actuating a given keyer such that a given keyer can be actuated from plural registers,
• and means for controlling said registers to provide ones of said plural register outputs to control the operating level of said given keyer.

In an electronic organ provided with a plurality of input keyboard keys, plural signal waveform circuits, and keyer circuits operative in response to actuation of selected keys for coupling signal waveforms to keyer output circuitry,

• means controlled by said keyboard keys for supplying serial information for actuating said keyers,
• and plural shift register means receiving said serial information and providing the same in parallel to said keyers for actuating respective keyers to an on condition, including means for coupling a plurality of outputs from different shift register means to a given keyer so that a given keyer can be actuated from plural shift register means,
• wherein selected shift register means as supply inputs to a given keyer are operative to provide said inputs at different times for different time periods on a cyclic basis to control the operating level at which said given keyer couples the signal waveform provided thereto.