The Swirl is an Optical* Phase Shifter with a Classic 1969 Voice. Chewy, lush, watery, vibe-style phaser with superior clarity and frequency response compared to a vintage specimen or a clone.  It is a Gorgeous and addictive tone, just swampy enough. The sweep has been optimized for the fullest possible range and intensity without going "over the top."  Perfect balance between a smooth, symmetrical and a throbbing, asymmetrical waveform.  This is not a bashful effect, but your guitar's tone will still shine through loud and clear. Extremely low noise and low distortion, maintains neutral eq and volume footprint. Plenty of headroom.  Fuzz friendly, before or after. Big knob for easy foot control * "Optical?" Does that mean it has a real photocell?  (BTW, it's not called a photocell, which is something that converts light to electricity, it's called a light-dependent resistor.)  Yes; it has five of them!  Four for the phase shifting and one for the speed controller.  (Because an LED/LDR combination does a better job at smoothly sweeping through speeds than a reverse-log-taper pot does.) Controls: (1) Speed - Goes from almost standing still to super fast rotary spin LED Indicators: Bypass (Green) indicates when circuit is active, off when in true-bypass & Speed (Red) indicates the speed of the sweep, always active. ________________________________ Is this a "real" vibe or a phaser? Okay, a vibe is a phaser that's made with discreet transistors and optical electronics.  The input stage of a vibe is similar to a simple discreet op-amp circuit, and each phase-shifting stage is made with a darlington pair with "bootstrap" positive feedback for high impedance (again, op-amp-like) which feeds both a negative and a variable phase-shifted positive signal to the next stage.  At the end of four of these stages, the original dry signal is mixed together again at the output. The Skreddy Swirl is made with op-amp gain stages in a very similar configuration a
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