The Greenizer Overdrive is an analog 9-volt overdrive pedal from Black Sheep.
The Black Sheep Greenizer is a clone of the classic Tube Screamer, cloned from the end of the 1970's Tamura S. Design, followed by the TS808 by Ibanez, one of the most cloned pedals ever. The Greenizer hits the bulls-eye with this version of a vintage-style tube screamer tone. It is a lot like the tube pusher but has a softer more vintage "round" sound and tone, not as hard and heavy as the tube pusher.