Exhibit 1(d) AMENDMENT NO. 4 TO RIGHTS AGREEMENT Amendment No. 4 dated as of February 21, 2001 ("Amendment No. 4") among Merrimac Industries, Inc., a New Jersey corporation ("Merrimac New Jersey"), Merrimac-Delaware, Inc., a Delaware corporation...Rights Agreement • February 21st, 2001 • Merrimac Industries Inc • Radio & tv broadcasting & communications equipment • New York
