| JJ-61CS | Century Spring Corp. | 11,261 | COMP O= .343,L=  .53,W= .042 | 
                                                                    
                                        | JJ-62CS | Century Spring Corp. | 7,123 | COMP O= .188,L=  .38,W= .022 | 
                                                                    
                                        | JJ-6386 | JJ Electronics | 22 | JJ 6386 LGP PREAMP VACUUM TUBE | 
                                                                    
                                        | JJ-64CS | Century Spring Corp. | 2,017 | COMP O= .437,L=  .66,W= .016 | 
                                                                    
                                        | JJ-6550 | JJ Electronics | 78 | JJ 6550 PWR VACUUM TUBE | 
                                                                    
                                        | JJ-66CS | Century Spring Corp. | 1,513 | COMP O= .172,L=  .44,W= .018 | 
                                                                    
                                        | JJ-67CS | Century Spring Corp. | 650 | COMP O= .234,L=  .59,W= .022 | 
                                                                    
                                        | JJ-68CS | Century Spring Corp. | 4,651 | COMP O= .094,L=  .25,W= .010 | 
                                                                    
                                        | JJ-69CS | Century Spring Corp. | 295 | COMP O= .266,L= 1.00,W= .050 | 
                                                                    
                                        | JJ-6L6GC | JJ Electronics | 1,095 | VACUUM TUBE JJ 6L6GC PWR | 
                                                                    
                                        | JJ-6SL7 | JJ Electronics | 152 | JJ 6SL7 PREAMP VACUUM TUBE | 
                                                                    
                                        | JJ-6SN7 | JJ Electronics | 73 | JJ 6SN7 PREAMP VACUUM TUBE | 
                                                                    
                                        | JJ-6V6 | JJ Electronics | 537 | JJ 6V6S PWR VACUUM TUBE |