Just got this cool orange USA Ross Phaser tonight for $20 bucks. I got home and hooked it up to my board and *crickets*..... Actually I heard a thumping like a child's kick drum coming thru the amp, so I fooled around and checked a few things...still nothing. I searched around for a 9volt, ran it straight into the amp, and... HALLELUJAH!!! SWEET TONE. Damn I love this thing. Been playing an old DOD FX20B for years, and loved some phaser, especially for some old Wailers Uprising type tunes, and this old Ross is just what I needed. Big score tonight. Give thanks!