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Museum : Roland Room : SH-7
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Search the Synthmuseum.com Classifieds for this instrument.

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SH-7

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. Manufacturer:
Roland

Model:
SH-7

Production period:
1978-81

Quantity produced:


Famous Fingers
Who played this instrument?

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Roland SH-7

image courtesy of Kevin Lightner

The SH-7 is a 2-VCO, duophonic analog synthesizer with a 3 1/2-octave, 44-note (F-C) keyboard. Both VCOs can be switched between triangle, sawtooth, square, and pulse waveforms. VCO2 can be detuned from VCO1. Pulse-width can be controlled by the LFO or ENV1 (envelope generator 1). Each VCO has three sliders that adjust how much it is affected by the LFO, S/H, and a function called "Autobend". Autobend allows the VCO to slide up or down to a pitch. The Autobend function has controls for polarity and time. VCO1 has an additional square wave section (called VCO1B) wherein five sliders control the volume of each square wave (2', 4', 8', 16', and 32'). This works in much the same way as an organ's drawbars do. The SH-7 also features a ring modulator where the first input is VCO1 and the second is switchable between VCO2 and an external signal (via the external input jack in the back). There is a switch for oscillator sync. However, it does not achieve the usual "sync" sound. A mixer section provides five sliders, VCO1A, VCO1B, VCO2, Noise, and the last one switchable between the Ring Modulator and the External Signal.

The SH-7 features a single VCF (self-oscillating, 24dB/octave) with five sliders controlling modulation, many of them having a switch to choose between two options. The modulation sliders are for are the ENV1 (with switchable polarity), LFO or S/H, Keyboard or optional pedal, VCO1 or noise, and an envelope follower from the external signal (also with switchable polarity). The VCA can be controlled by either ENV1 or ENV2, and has a Hold button and a slider for LFO amount. Both ENV1 and ENV2 are ADSR envelopes and each has three trigger options, gate/trigger, gate, and LFO. The sample-and-hold section features three waveforms sources and an Output Lag slider (a rare but extremely useful feature). The LFO can output sine, up-ramp, or pulse waveforms, and has controls for rate and delay. Portamento can be set for just up, just down or both ways. The bender can be set to modulate the VCO, VCF, and/or the VCA with varying amounts of control voltage or LFO signal.

[from The A-Z of Analogue Synthesizers, by Peter Forrest, published by Susurreal Publishing, Devon, England, copyright 1994 Peter Forrest]



Famous Fingers
Who Played This Instrument?

Chris Carter, Vince Clark, Andrew Farris, Human League, Adrian Lee, Planet 4 Records

[Let us know if you have any further additions to this list.]

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