National Mic Mixer WR-420A - SN 752004 Power Supply:Without Transformer A Ross Phase Distortion R1

A Ross Phase Distortion R1 guitar pedal

but please bear in mind this is a vintage analogue unit so may be noisier at extreme settings when compared to modern rack effects

The usual minor oxidation of the metal fittings

Of course none of this affects operation - it is a joy to program and tweak

National Mic Mixer WR-420A - SN 752004 Power Supply:Without Transformer A Ross Phase Distortion R1National Mic Mixer WR 420A for sale serviced and ready to blow your mind and rip up your speakers. These are serious secret weapons so much so that we had to stop talking about them for a while. Click on the Product Information section below to witness the wildness in action. Dating from the 70s 80s and apparently originally intended for general announcements over school PA systems now more suited to rave in a basement type noises with monstrous drive