Greco HA-9P Super Effect


the 1968 Goya catalog:

The newest and most unique foot pedal ever offered. 5 different effects in one. It's a volume foot pedal control as well as one of the best Wah-Wah foot pedals we've ever heard. It has a siren switch with separate volume knob that works independently of the other effects. You can also create the crashing waves of the surf and the howling wind. This transistorized battery operated unit works with any amp for any musical instrument. Complete with battery, plastic snap pouch and box.

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