6. Ratio Selector Switch: Selects delay subdivisions when time is set by the “Tap” switch.
7. Decay: Controls the decay length of the reverb, short decay counterclockwise, long cavernous decay clockwise.
8. Toggle Switch (Mode Selector)
Normal: This is the “standard” delay and reverb mode
Reverse: This is reverse delay mode with “standard” reverb
Swell: This is the volume swell mode
9. Mix: This is the volume control for the reverb. Blends in the wet with dry until 1 O’clock, 1 O’clock to 3 O’clock boosts the wet signal over the dry and 3 O’clock up brings down dry until it is fully wet when all the way up.