Engraved on the conmponent side of the card (engineering part number?)
Engraved on the conmponent side of the card
overall: 3/8 in x 4 1/2 in x 2 5/8 in
Two identical cards share this catalog number. The card is a 'DBW' card whose function is unknown. The module consists of two rows of components, jumpers, and three transistors (one of which is mounted on a red anodized aluminum heat sink).