This record contains one bias driver. There are several white wires and one yellow wire on the component side. There is one connector on the bottom of the board. There is a component with a switch. This switch protrudes from the metal shelf at the top of the board. The words "reverse" are printed in black on the metal shelf beneath the switch. There is a sticker attached to the solder side which reads "bias dr both can be +" written in pencil. There is a part number soldered on the solder side, which is blocked by the sticker. The words "D.I.P. board" are soldered above the blocked part number. The manufacturer logo is soldered next to the sticker.