In case anyone is interested, I have some NOS black Navy stamped 12 volt dynamotors with the bases for an ARC-5 receiver and the proper output voltage. A perfect fit for your 12 volt ARC-5 receivers. $40 each plus shipping. Thanks & 73 - Mike Mike B. Feher, N4FS 89 Arnold Blvd. Howell, NJ, 07731 848-245-9115