The Timmy Pedal by Paul Cochrane is an amazing overdrive that is known for it's ability to provide a transparent overdrive to your amplifier while retaining the amps original tone. It's a fairly common thing for an overdrive to color tone, so why invest in a $1500 plus amp only to change it's inherent sound, right? You could call the Timmy pedal the little brother to the much loved, but discontinued Tim, and to a degree, you'd be correct.  It has essentially the same circuit, but doesn't have the send and return loop nor the boost section.  It's also a bit smaller, saving that valuable pedal board real estate!