Hey guys... Forgive the totally naive question, but what exactly does the vibrato knob control? I have a Wurlitzer 200 and no matter how much I turn the vibrato dial, I seem to only have two options: no vibrato or vibrato on. The knob doesn't seem to control the vibrato depth or vibrato volume. Just simply on/off. Is this normal? I'd blame the amp but I just put in a new Warneck amp and it's exactly the same as it was with the old amp. Just wondering what I should expect.
Thanks and Happy New Year!