Quick view Add to Cart Operation, Service, & Overhaul Instructions with Parts Catalog for D-C Carbon Pile Voltage Regulator Models 1588-1-A, -1-B, & 1589-2-A Document Part Number: AN 03-5AA-30 Number of pages: 60Part Number: AN 03-5AA-30Revision Date: 1-Apr-1950, MSRP: Was: Now: $33.06