| Pin # | Assignment | 
                                        
                                        
                                                                                                                                                                                                    
                                                        | 1 | Focus (G3) | 
                                                                                                                                                                                                                                                                                                        
                                                        | 2 | Keyed Out | 
                                                                                                                                                                                                                                                                                                        
                                                        | 3 | CV H-Stat (Sony) | 
                                                                                                                                                                                                                                                                                                        
                                                        | 4 | G2 Red Pin | 
                                                                                                                                                                                                                                                                                                        
                                                        | 5 | Red Pin | 
                                                                                                                                                                                                                                                                                                        
                                                        | 6 | Green Pin | 
                                                                                                                                                                                                                                                                                                        
                                                        | 7 | G1 Red Pin | 
                                                                                                                                                                                                                                                                                                        
                                                        | 8 | Heater (F1) | 
                                                                                                                                                                                                                                                                                                        
                                                        | 9 | Heater (F2) | 
                                                                                                                                                                                                                                                                                                        
                                                        | 10 | Blue Pin | 
                                                                                                                                                                                                                                                                                                        
                                                        | 11 | Keyed Out | 
                                                                                                                                                                                                                                                                                                                                                                                                                                                                            
                                    
                                     CR-40 Datasheet                                    Note: If you only see one assignment for G1 (or G2), it means there is only a single G1 (or G2) grid shared across all cathodes. This is called "common G1" (or "common G2"). In this case, when using a Universal Adapter (UA), you only have to hook up one G1 (or G2) lead on your tester to connect all cathodes' G1 or G2 properly.