Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | | |
| CV2501 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1925 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4011A | Triode | | | | CV1415 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4017B | Rectifier HW | | | | CV1446 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4019B | Double Triode | | | | AR11 CV1309 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Cathode-Ray Tube | 1936 | |
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
401D | Triode | | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Output Triode | 1934 | |
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
402PenA | Pentode | 1938 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4020 | Triode | | | | AR12 CV1310 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4020B | Triode | | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4020C | Triode | | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4021B | Triode | | | | AR20 CV1316 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4022B | Triode | 1925 | | | AR13 CV1311 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4030C | Water Cooled Power Triode | 1938 | | | 3Q/292E |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4030D | Water Cooled Power Triode | 1938 | |
| |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4033L | Triode | | | | 3033A 3B/252B 3B/303A 4033A CV1220 CV1688 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4039A | Triode Thyratron | 1937 | B5 |
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
403B | UHF Pentode | 1947 | | | 5591 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4043 | Triode (selected 5876) | | |
| 5876 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4043C | Triode | | | | 3B/350A CV1448 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4045A | Tetrode | 1937 | B5 |
| CV243 POVT145 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4046A | Pentode | | | | CV244 MS/Pen |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4049 | Rectifier HW | | | | CV1355 ESU300 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4049A | Rectifier HW | | | | CV1471 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4049D | Rectifier (MV) | | | | AH221 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4051 | Cathode-Ray Tube | 1938 | | | |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
405/BU | Rectifier FW (EHT) | 1937 | B4 | | CV2640 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
405OR | Photocell | | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4061A | Pentode | | | | 5B/100A ATP10 CV1369 RK25 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4064B | Rectifier HW | | | | 872 872A AH217 CV642 CV1449 ESU872 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4066A | Pentode | | | | 7A3 ARP25 CV1181 KT41 NR59 PenA4 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
406D(While Line) | Detector Triode | 1926 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
406H(Red Line) | RF Triode | 1926 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
406L(Green Line) | AF Triode | 1926 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
406RC(Blue Line) | RCC Triode | 1926 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4067 | Pentode | 1957 | |
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4069A | Pentode | | | | ATP100 CV1372 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4074B | Double Triode | | | | CV1573 VT61A |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
408A | Cathode-Ray Tube | 1936 | | | E4103/E/4 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
408BU | Rectifier FW | 1930 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
40CB4 | Cathode-Ray Tube | | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
40PPA | Pentode | 1934 | |
| 7D3 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
41 | Output Pentode | 1936 | UX6 |
| CV608 |
|
|
|
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4104D | Triode | | | | 104D SY4104D |
|
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
410LFT | Triode | | B4 | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
410PT | Pentode | 1932 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
410RC | Triode | 1927 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4120 | Triode | | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
412BU | Rectifier FW | 1929 | B4 |
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
412SU | Rectifier HW | 1930 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4152 | Thermal Delay Switch | 1954 | |
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
417 | Klystron | | IO |
| WL-417 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
417A | Klystron | | IO |
| 2K41 CV2642 VT-277 WL-417A |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
417A/5842 | Triode | | | | 5842 CV3789 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
41E | Output Pentode | 1936 | UX6 |
| CV608 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
41FP | Triode | | | | CV2502 CV2509 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
41MDG | Bi-Grid | 1932 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
41ME | Tuning Indicator | 1938 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
41MH | Triode | 1930 | B5 |
| CV2503 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
41MLF | Triode | 1929 | | | CV1038 MHL4 NR26 VR38 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
41MLT | Triode | | | | CV1117 VR117 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
41MP | Triode | 1929 | B5 |
| CV1458 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
41MPT | Pentode | 1937 | | | CV2506 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
41MTA | Triode | 1937 | B5 | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
41MTB | Triode | 1937 | | | |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
41MTS | Split Anode Pentode | 1937 | B7 | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
41MXP | Pentode | 1929 | |
| 054V ACP1 CV1122 LL4 PA1 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
41STH | Triode Hexode | 1936 | B7 | | 20A1 A36A AC/TH1 CV2508 TH4 X41M |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
42 | Output Pentode | 1936 | UX6 |
| 42E CV609 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
42-OT/DD | Double Diode Beam Tetrode | 1937 | B7 | | CV2512 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
420LFR | Triode | | B4 | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4205E | Triode | 1937 | | | 3B/151A CV1648 M4205E |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4212D | Triode | | |
| |
|
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4242A | Triode | 1938 | |
| 211 242C CV25 ES85 UE311 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
425Pen | Pentode | 1929 | B4 | | Pen425 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
426 | Triode | | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4261 | Thyratron (Mercury Vapour) | | | | 5557 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4270A | | | | | CV30 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4274A | Rectifier FW | | UX4 |
| 22S/200A 274A CV1451 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4279A | | | | | 279A CV669 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4282 | Beam Tetrode | | | | CV1365 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4282B | Beam Tetrode | | | | ATS70 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
42E | Output Pentode | 1936 | UX6 |
| 42E CV609 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
42MPT | Pentode | 1937 | | | ARP7 CV1325 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
42OT | Tetrode | 1937 | B7 | | CV2511 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
42PAY | Pentode | | | | CV2513 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
42PTB | | 1937 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
42SPT | Pentode | 1937 | B7 | | CV1444 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
43 | Output Pentode | 1932 | UX6 |
| A2543 CV2514 ER43 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4300A | Triode | 1938 | UX4 |
| 300A 300B 3B/170A 3B/400A 4275A CV1452 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4304 | Triode | | | | CV2759 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4304BB | Triode | | B4 |
| CV2761 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4307A | Pentode | | | | CV1080 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4313C | Thyratron | 1945 | B4 |
| 313C 3313C CV75 G150/1A PTT3003 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4316A | Triode | | |
| 316A CV683 CV2762 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4317 | Voltage Stabiliser | | | | CV1201 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4328A | Pentode | | UX6 |
| 328A CV2619 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4357A | | | | | CV27 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
436A | Pentode | 1960 | | | A2674 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
43E | Output Pentode | 1937 | UX6 |
| CV2514 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
43U | Rectifier FW | | | | CV1039 UU5 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4415 | Camera Tube (Image Orthicon) | | | | P875 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4416 | Camera Tube (Image Orthicon) | | | | P891 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
442BU | Rectifier FW | 1931 | B4 |
| CV1796 UU5 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
445 | Rectifier FW | 1931 | UX4 | | 145 ER45 G45 PM245 UX245 l45 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
446A | Triode | | IO | | CV932 GL446A |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
446B | Triode | | | | 2C40 CV687 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4478 | Camera Tube (Videcon) | | | | P826/4478 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4493 | Camera Tube (Videcon) | | | | P893/4493 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4494 | Camera Tube (Videcon) | | | | P894/4494 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4495 | Camera Tube (Videcon) | | | | P894/4495 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
44A/160M | Double Beam Tetrode | | | | CV415 TT15 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
44-IU | Rectifier FW | 1937 | | | CV1039 UU5 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
44-SU | Rectifier HW | 1930 | B4 |
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
45-IU | Rectifier FW | 1939 | B4 | | CV2529 FW4-500 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
45 | Output Triode | 1929 | UX4 |
| 245 345 CV610 UX245 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
451 | | | | | CV3585 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
451PT | Pentode | 1947 | | | 45A5 N142 UL41 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4536 | Image Orthicon | 1962 | |
| 4492 4492V1 4492V2 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
45A5 | Pentode | 1947 | | | 451PT CV1977 N142 UL41 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
45B5 | Pentode | | | | 10P18 N119 UL84 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
45Z3 | Rectifier HW | 1940 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
45Z5GT | Rectifier HW | | | | CV2530 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
46 | Dual Grid Amplifier | 1933 | UX5 |
| CV2531 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
460BU | Rectifier FW | 1931 | | | UU5 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4643 | Triode | | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
464A | Triode | | | | 2C43 CV688 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4662 | Tuning Indicator | 1934 | | | 3184 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4671 | Triode | | | | 1650+D2805 5731 955 E1C |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4672 | Pentode | | |
| 954 E1F ZA2 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4674 | Diode | | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4675 | Triode | | | | A40 AT4 Z1 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4676 | Pentode | | | | A41 AP4 Z2+D2676 ZA1 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4685 | Tetrode | | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4687 | Tetrode | 1937 | Ct8 |
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4687A | Tetrode | 1937 | B4 |
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
4699 | Pentode | | | | EL54 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
47 | Output Pentode | 1936 | UX5 |
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
47E | Output Pentode | 1936 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
48 | Tetrode | 1936 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
484LFU398 | Rectifier | | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
484V | Triode | 1931 | B5 | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
485 | Triode | 1940 | | | |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
49 | Tetrode | 1935 | UX5 |
| CV2532 |
|