Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1924 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W10/3E | Travelling Wave Tube | 1962 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | 1947 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W107 | Pentode | 1952 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W118 | Pentode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W119 | Pentode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W142 | Pentode | 1947 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W145 | Pentode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W1532 | Triode Hexode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | 1947 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1924 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | 1937 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W21Met | Pentode | 1937 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W25 | Pentode | 1953 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Micropup Triode | 1940 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1925 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | 1934 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W30K | Pentode | 1934 | | 
| CV3805 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | 1935 | | 
| CV3806 CV3807 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | 1936 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W42M | Pentode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Twin W2514 (NT99) Assembly | 1940 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W61M | Pentode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | 1937 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W7/4G | Travelling Wave Tube | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W719 | Pentode | 1955 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | 1954 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W729 | Pentode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W739 | Pentode | 1956 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | 1945 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Travelling Wave Tube | 1952 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | 1949 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | 1947 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
W9/2E | Travelling Wave Tube | 1962 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1922 | | 
| 11 C11 SLD11 WD-11 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
WD119 | Double Diode Pentode | 1952 | | 
| 10FD12 19FL8 UBF89 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1923 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Diode Pentode | 1948 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Double Diode Pentode | 1935 | | 
| CV3810 CV3811 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Double Diode Pentode | 1935 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Double Diode Pentode | 1950 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1936 | | 
| 252A |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1923 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1916 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Ignitron | 1946 | | 
| 5550 GL415 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Klystron | | | 
| 417A CV2642 VT-277 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Spark Gap | 1945 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
WL734 | Photocell | | | 
| CE1V R59AV VS118 WL734 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
WL735 | Photocell | | | 
| 3554 4GSM 50CG 868 CE1 CMG32 G8 GS146 NU.1 PJ23 R59A WL735 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
WL737 | Photocell | | | 
| 4GC 814A CE2 GS117A NU2 R71A |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1924 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | | | 
| |
|