This is an updated version of the low frequency oscillator on the classic analogue synthesiser, the Korg MS-20. It features two output waveforms, triangle and square. But, the design also incorporates a 'Shape' control that affects the rise and fall times of the triangle waveform, and mark-space ratio of the pulse waveform. Therefore, you can get sawtooth and reverse sawtooth from the triangle output by using the Shape control. Supplied with a 18” power cord