This listing is for a MFJ 422B-X Electronic KeyerThe operation of this keyer is a bit questionable. I put 9 volts DC on red and black wires and I hear dashes in the speaker when powered on. If I connect the red keyer wire to ground, I get dots. If I connect the black wire to ground I get iambic dot-dash-dot-dash and so on. That doesn’t seem right to me. Selling this as parts with no returns. It might be fun to tinker with it. Fits on the Bencher BY-1 style CW keys of the era. You will receive the EXACT item shown in the picture.Thanks for looking!!!
