Here's an amp that can give you a case of Sonic Vertigo. This is an all-tube amplifier with a unique design. The pentode preamp section gives a bright and touch-sensitive feel; the low-voltage 7695 power tubes allow for big-sounding push/pull breakup tones at a manageable 10 watts of output.
But the big secret is in the lower part of the box: hidden inside is a rotating speaker from a vintage console organ. Not a rotating baffle or horn: the whole speaker is mounted on a revolving drum for an outstanding Leslie-style sound. Once you've heard it you'll know: there's no way to fake this with digital effects!