I am in need of a dynamotor for my BC-604. I would prefer the DM-35 12 Volt version but would consider the 24 volt DM-37. Also if you have any not needed items related to the BC-604 that I might need please let me know and I will reply. Please reply off list hoopmonk at gmail.com or hoopmonk at snet.net 73 Bob W1GTH