3A10
Ballast Regulator  
Base: Octal
Data Sheet: NOT FOUND

Tube Manufacturer Condition Date Code Shape Test
539C 		Minimum
539C
3A10            

3A2
Diode
HV 1/2-Wave Rectifier
Base: 9-Mini
 Data Sheet

Tube Manufacturer Condition Date Code Shape Test
539C 		Minimum
539C
3A2            
3A2            

3A3, 3A3B, 3A3C
Diode
HV 1/2-Wave Rectifier
Base: Octal
 Data Sheet

Tube Manufacturer Condition Date Code Shape Test
539C 		Minimum
539C
3A3            

3AU6
Pentode
Base: 7-Mini
 Data Sheet

Tube Manufacturer Condition Date Code Shape Test
539C 		Minimum
539C
3AU6            
3AU6            
3AU6            
3AU6            

3B26
HV Clipper Diode
Base: Octal
 Data Sheet

Tube Manufacturer Condition Date Code Shape Test
539C 		Minimum
539C
3B26            
3B26            
3B26            
3B26            
3B26            
3B26            
3B26            

3B28
Diode
Base: 4-Pin
 Data Sheet
 

Tube Manufacturer Condition Date Code Shape Test
539C 		Minimum
539C
3B28 GE NIB 63-12 ST    
Click on picture
    
General Electric    

3BZ6
Pentode
Base: 7-Mini
 Data Sheet

Tube Manufacturer Condition Date Code Shape Test
539C 		Minimum
539C
3BZ6 RCA NIB 63-12      
3BZ6 RCA NIB 63-12      
3BZ6 RCA NIB 63-12      
3BZ6 RCA NIB 63-12      
3BZ6 RCA NIB 63-12      
3BZ6 RCA NIB 63-12      
3BZ6 RCA NIB 63-12      

3C45
Hydrogen Thyratron
Base: 4-Pin
 Data Sheet

Tube Manufacturer Condition Date Code Shape Test
539C 		Minimum
539C
3C45 RCA Used        
3C45 Kuthe Used        
3C45 Kuthe Used        
3C45 Kuthe Used