Part Number: 1037933-001 (Socket electron tube)Part Number: 1200-0020 (Socket electron tube)Part Number: 122-244-12 (Socket electron tube)Part Number: 125E1-6-49 (Socket electron tube)Part Number: 5025-971 (Socket electron tube)Part Number: 5935-00-162-3074 (Socket electron tube)Part Number: 5935-00-803-7660 (Socket electron tube)Part Number: 7490-0077 (Socket electron tube)Part Number: PC1876 (Socket electron tube)Part Number: SK144A (Socket electron tube)Part Number: SK640 (Socket electron tube)Part Number: SK760 (Socket electron tube)Part Number: SMB-179288 (Socket electron tube)