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A microwave (12–18 GHz) voltage-controlled oscillator. A voltage-controlled oscillator (VCO) is an electronic oscillator whose oscillation frequency is controlled by a voltage input. The applied input voltage determines the instantaneous oscillation frequency. Consequently, a VCO can be used for frequency modulation (FM) or phase modulation ...
The following quotation summarizes its facilities: [T]he SN76477 generates complex audio signal waveforms by combining the outputs of a low frequency oscillator, variable frequency (voltage controlled) oscillator (VCO) and noise source, modulating the resulting composite signal with a selected envelope and, finally, adjusting the signal's attack and decay periods.
Pet fence. A pet fence or radio fence, is an electronic system designed to keep a pet or other domestic animal within a set of predefined boundaries without the use of a physical barrier. A mild electric shock is delivered by an electronic collar if its warning sound is ignored. The system was first invented and patented by Richard Peck in 1973.
CV/gate (an abbreviation of control voltage/gate) is an analog method of controlling synthesizers, drum machines, and similar equipment with external sequencers. The control voltage typically controls pitch and the gate signal controls note on-off. This method was widely used in the epoch of analog modular synthesizers and CV/Gate music ...
A Heathkit amateur radio transmitter circa 1969, with external VFO. A variable frequency oscillator (VFO) in electronics is an oscillator whose frequency can be tuned (i.e., varied) over some range. [1] It is a necessary component in any tunable radio transmitter and in receivers that work by the superheterodyne principle.
Keyboard. 32 keys. External control. CV/Gate. Korg MS-10 is an analogue synthesizer created by Korg in 1978. [2] Unlike its bigger brother, the Korg MS-20, the MS-10 only has one VCO, one VCF and one envelope generator. It is monophonic and has 32 keys. The MS-10 is well known for its huge sounding electro bass sounds.
The DK1, produced in 1969, is an early velocity-sensitive monophonic keyboard for VCS 3 with an extra VCO and VCA. [ # 3 ] In 1972 it was extended for duophonic play as DK2 . [ # 4 ] Also in 1972, the Synthi AKS was released, as well as a digital sequencer with a touch-sensitive flat keyboard, the KS sequencer , [ # 5 ] and its mechanical ...
Vackář oscillator. Schematic of what is commonly called the Vackář oscillator. Vackář credited Radioslavia with developing this circuit in 1945. [1] A Vackář oscillator is a wide range variable frequency oscillator (VFO) which has a near constant output amplitude over its frequency range. It is similar to a Colpitts oscillator or a ...