Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
325D3  Triode (Power)  1945    

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3A/105B  Triode     CV809 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Triode  1947  
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3A/141A  Triode  1946    

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Triode  1940  
 4104D 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Triode  1947  
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3A/147J  Triode     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3A/148J  Triode     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3A/154M  Triode     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Triode   
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Rectifier EHT  1954  
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Pentode  1945  
 CV807 CV2390 DL93 E1485 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Double Triode  1942  
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3A8GT  Diode Triode Pentode  1940    

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 CathodeRay Tube  1960  
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Double Diode  1955  
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3AP1  CathodeRay Tube     CV602 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3AV6  Double Diode Triode  1958    

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 CathodeRay Tube  1963  
 CV8108 DHM911 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3B/102B  Triode     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3B/200B  Triode     CV1047 T20G TZ0520 VT47 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3B/24W  Rectifier HW     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Triode     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3B/241M  Triode     CV5116 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3B/29  Rectifier HW     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3B/401J  Triode     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3B/501A  Triode     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3B2  Diode     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3B21  Rectifier FW     38401 CV2959 EL302.5 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Rectifier FW  1953  
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Rectifier HW   
 732A CV709 CV812 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Rectifier HW   
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Rectifier HW   
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Rectifier HW  1952  
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3B4  Pentode     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 CathodeRay Tube  1944  
 CV814 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3C23  Thyratron     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Triode  1945  
 25T 325D3 B1109 CV789 HK24G PE130A VT204 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Double Triode  1946  
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3C34  Triode     25T CV941 HK24 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3C4  Pentode  1953    

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Thyratron (Hydrogen)   
 BT79 CV372 FX227 XH3045 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3C45/6130  Thyratron (Hydrogen)     FX227 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3C45/PL345  Thyratron (Hydrogen)     FX227 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3C800E  Triode (Power)     B1153 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Triode (Power)   
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Triode (Power)   
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3D6  Pentode  1942    

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3D6/1299  Pentode  1942    3D6 CV815 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Thyratron  1958  
 3870A 4G/401A CV2851 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3DP1  CathodeRay Tube     CV816 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3DT6  Pentode  1957    

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Double Beam Tetrode   
 829 829B CV632 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3EG1  CathodeRay Tube  1958    

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3F10TA  Triode (Power)     BW179 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3F10TR  Triode (Power)     BR179 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3F15TR  Triode (Power)     BR161 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3G15  Thyratron (Xenon)     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Triode  1961  
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3J/121E  Triode (Power)     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3J/192E  Triode (Power)     BR1165 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3J/202E  Triode (Power)     BR1162 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3K3000LQ  Klystron ( CW Amplifier)     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3K50000LF  Klystron ( CW Amplifier)     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3KM3000LA  Klystron ( CW Amplifier)     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3L5T  Triode (Power)     BR1162 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3NP4  CathodeRay Tube     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Pentode  1950  
 CV818 DL95 N18 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Pentode   
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3Q5GT  Pentode  1938    

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Pentode  1941  
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3S4/DL92  Pentode     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3V/340B  Thyratron (Mercury Vapour)     BT19 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3V/390B  Thyratron (Mercury Vapour)     BT5 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
 Pentode  1946  
 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3V4/DL94  Pentode     

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3V/490A  Thyratron (Mercury Vapour)     BT17 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3V/500A  Thyratron (Mercury Vapour)     BT95 

Type  Structure  Date  Base  PDF  Sensibly equivalent^{¶} to: 
3V5T  Triode (Power)     BW1162 
