DSL is a Dual Slew Limiter for creating portamento and slew limiting effects.
The slew is controlled by two switches.
Switch one select the slew edge
D = Down edge (Fall)
B = Both edge
U = Up edge (Rise)
Switch two select the slew mode Lin or Log.

+12V = 20mA / -12V = 20mA
Width : 4HP
Depth : 27mm with connector
Tested and assembled by hand.

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