Ampeg SJ-12T manual Power switch is used to turn the amplifier on and off

OLO					REVERB
4	5	6		4	5	6			OFF
3			7	3		7
2			8	2			8
16			9	17		9	8	9
									ON
0		10		0		10

INTENSITYDIMENSION

6.Tremolo-Intensity sets the depth of the tremolo effect. For slow, smoother vibrato effects try the Intensity control at around 6 and the Speed control at 1. For the really wild sounds, crank the Intensity up towards 8 (or beyond) and go from there.

7.Reverb-Dimension controls the amount of reverberation applied to the signal. With the control at the “0” position there is no reverb applied; as the control is turned towards “10” the amount of reverb increases accordingly.

8.Power light illuminates (iridescent blue) when the amplifier is turned on.

9.Power switch is used to turn the amplifier on and off.

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