Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B109 | Double Triode | 1954 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Output Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B1109 | Triode | 1945 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B1152 | Triode (Power) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B1153 | Triode (Power) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B12 | Output Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B152 | Double Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1923 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B20 | Double Triode | 1924 | | 
| CV2865 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B21 | RF/Detector Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B21 | Double Triode (Class B) | 1933 | | 
| CV2864 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B210H | RF/RCC Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B210L | Detector Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B215P | Output Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B22 | Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B22&thin; | Class B Double Triode | 1933 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Output Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Bolometer | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B24 | Class B Double Triode | 1933 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1924 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B30 | Double Triode | | | 
| CV2865 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Double Triode | 1953 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Double Triode | 1954 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Double Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B339 | Double Triode | 1955 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Double Triode | 1960 | | 
| 30L15 7EK7 PCC805 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Double Triode | 1948 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1923 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B406 | Triode | | | 
| AR13 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B409 | Triode | 1931 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Tetrode | 1927 | | 
| DZ2 H410D R81 TB42 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1923 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Cathode-Ray Tube | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B5H | RF/RCC Triode | 1926 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1926 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Double Triode | 1948 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B6HA | Geiger-Muller Tube | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B719 | Double Triode | 1955 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Double Triode | 1958 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
B8 | RCC Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BA16-10 | Backward Wave Oscillator | 1960 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Double Triode (Class B) | 1933 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BA9-20 | Backward Wave Oscillator | 1962 | | 
| N1010 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BA9-20M | Backward Wave Oscillator | | | 
| N1010 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Class B Double Triode | 1934 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| BeamSwitching Tube | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BD10 | Rectifier MV | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BD12 | Rectifier MV | 1966 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1929 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BE(4V) | Bi-Grid | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BE(6V) | Bi-Grid | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BE6LF | AF Triode | 1925 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BEHF | RF/Detector Triode | 1925 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BELF | AF Triode | 1925 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BIC/1E | Barretter | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Bi Grid | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Bi Grid | 1925 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1926 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| X-Ray Tube | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BH | Cathode-Ray Tube | 1935 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1925 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK146 | Ignitron | | | 
| BK146/5553B |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK146/5553B | Ignitron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK168 | Ignitron | | | 
| BK168/5822A |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK168/5822A | Ignitron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Ignitron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK24 | Ignitron | | | 
| CV2124 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Ignitron | 1959 | | 
| 5552A 6347 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK416 | Ignitron | | | 
| 7703 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK416/7703 | Ignitron | | | 
| 7703 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK42 | Ignitron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK428 | Ignitron | | | 
| BK472 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK44 | Ignitron | | | 
| BK44/5554 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK44/5554 | Ignitron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK442 | Ignitron | | | 
| BK442/7669 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK442/7669 | Ignitron | | | 
| BK442/7669 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK444 | Ignitron | | | 
| BK444/7671 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK444/7671 | Ignitron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK46 | Ignitron | | | 
| BK46/5555 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK46/5555 | Ignitron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK472 | Ignitron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK474 | Ignitron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK476 | Ignitron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK542/1081 | Ignitron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK66 | Ignitron | | | 
| BK66/5550 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BK66/5550 | Ignitron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Double Diode | 1939 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1001 | Magnetron (S-Band Pulse) | | | 
| M5015 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1001A | Magnetron (S-Band Pulse) | | | 
| M5015 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1002 | Magnetron (X-Band Pulse) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1003 | Magnetron (S-Band Pulse) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1004 | Magnetron (S-Band Pulse) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1005 | Magnetron (S-Band Pulse) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1006 | Magnetron (S-Band Pulse) | | | 
| CV2319 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1026 | Magnetron (X-Band Pulse) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1027 | Magnetron (X-Band Pulse) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1028 | Magnetron (X-Band Pulse) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1029 | Magnetron (X-Band Pulse) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1030 | Magnetron (X-Band Pulse) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1031 | Magnetron (X-Band Pulse) | 1970 | | 
| CV2186 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1032 | Magnetron (X-Band Pulse) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1033 | Magnetron (X-Band Pulse) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1034 | Magnetron (X-Band Pulse) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1035 | Magnetron (X-Band Pulse) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1036 | Magnetron (X-Band Pulse) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1037 | Magnetron (X-Band Pulse) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1038 | Magnetron (X-Band Pulse) | | | 
| CV2261 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1039 | Magnetron (X-Band Pulse) | | | 
| CV2262 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM1040 | Magnetron (X-Band Pulse) | | | 
| CV5167 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM25L | Magnetron (CW) | | | 
| 8864 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM25LB | Magnetron (CW) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM25LC | Magnetron (CW) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM25LD | Magnetron (CW) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BM313 | | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BPM04 | Pentode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BR1102 | Triode | 1955 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BR1103 | Triode | 1955 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BR1122 | Triode | | | 
| CV10368 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BR1160 | Triode | 1970 | | 
| CV8730 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BR1161 | Triode | 1970 | | 
| CV9343 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BR1162 | Triode | 1970 | | 
| CV5239 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BR1165 | Triode | 1970 | | 
| CV3926 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BR140 | Triode (Power) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BR153 | Triode (Power) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BR155 | Triode (Power) | 1954 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BR161 | Triode (Power) | 1954 | | 
| CV2322 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BR175 | Triode (Power) | 1954 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BR179 | Triode (Power) | 1955 | | 
| CV2323 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode (Power) | | | 
| CV5218 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BR191B | Triode (Power) | 1959 | | 
| 5762 ACT30 CV2383 CV5289 TY6-5000A |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BR194 | Triode (Power) | 197 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BS100 | Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BS215 | RF Tetrode | 1929 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BS4 | | | | 
| CV189 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BS60 | Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BT1 | Thyratron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Thyratron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BT107 | Thyratron (Hydrogen) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BT17 | Thyratron (Mercury Vapour) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BT29 | Thyratron (Mercury Vapour) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| | | | 
| CV22 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BT49 | Thyratron (Mercury Vapour) | 1941 | | 
| CV12 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BT5 | Thyratron (Mercury Vapour) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Thyratron (Mercury Vapour) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Thyratron (Mercury Vapour) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Thyratron (Hydrogen) | 1952 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Thyratron (Hydrogen) | | | 
| CV381 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Thyratron (Mercury Vapour) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BT95 | Thyratron (Mercury Vapour) | 1971 | | 
| CV5141 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BT9B | Thyratron (Xenon) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BTH | Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BTS215 | Detector Triode + AF Triode | 1928 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Barretter | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BU200 | Tungar Rectifier | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Barretter | | | 
| CV5003 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BU6 | Rectifier FW | 1928 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BU600 | Tungar Rectifier | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Double Diode Triode | 1938 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BVA142 | Pentode | 1938 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BVA162 | Pentode | 1938 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode Pentode | 1938 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Rectifier FW | 1936 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | 1939 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BVA266 | Pentode | 1938 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode Hexode | 1940 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1955 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BW1103 | Triode | 1955 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Rectifier HW | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BW161 | Triode (Power) | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BW189 | Triode (Power) | 1970 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1931 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
BY189 | Triode (Power) | 1970 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1931 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1928 | | 
| 3S23 PTT2 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Cathode-Ray Tube | | | 
| |
|