Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R. | Triode | 1916 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1916 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Rectifier HW | 1943 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Solid State DY87 Rectifier HW | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R1 | Rectifier FW | 1932 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R10 | Rectifier HW | | | 
| 2T/270K 6305 CV261 HR1 HR2 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R11 | Rectifier HW | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Rectifier HW | 1952 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Rectifier FW | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R14 | Rectifier 2 x HW | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Cathode-Ray Tube | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Rectifier EHT | | | 
| |
|
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 EHT | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R1AD4 | Pentode | | | 
| CV2237 DF62 XFR1 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R2/10 | | | | 
| CV97 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R2/38 | | | | 
| CV98 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R20 | Rectifier EHT | | B9A | 
| 2J2 KY80 U26 U49 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R2018 | Triode | 1932 | B5 | 
| |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R3/10 | Bolometer | | | 
| CV95 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R3/16 | | | | 
| CV96 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R3C | Barretter | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R.4 | Triode | 1917 | | 
| |
|
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R43 | Rectifier FW | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R453 | Photomultiplier | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R4A | Rectifier FW | | | 
| R3 UU5 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R5 | Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R51A | Photocell | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R51AV | Photocell | | | 
| CE25V CMV33X NU25V VS44X |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R5222A | Klystron | | | 
| CV2346 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R58A | Photocell | | | 
| CE4 G12 GS116AM |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R58AV | Photocell | | | 
| CE4V VS116AM |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R59A | Photocell | | | 
| 3554 4GSM 50CG 868 CE1 CMG32 G8 GS146 NU.1 PJ23 R59A WL735 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R59AV | Photocell | | | 
| CE1V R59AV VS118 WL734 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R59TA | Photocell | | | 
| CE11 GS118TA |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R59TAV | Photocell | | | 
| 917 CE11V GL917 NU11V R59TAV VS118TA |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R5V | Triode | 1922 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R61A | Photocell | | | 
| 930 CE30 GL930 GS16SO NU30 R64A |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R61AV | Photocell | | | 
| 925 CE30V NU30V R64AV VS16SO |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R64A | Photocell | | | 
| 930 CE30 GL930 GS16SO NU30 R61A |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R64AV | Photocell | | | 
| 925 CE30V NU30V R61AV VS16SO |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R71A | Photocell | | | 
| 4GC 814A CE2 GS117A NU2 WL737 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R71AV | Photocell | | | 
| CE2V VS117A |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R71BV | Photocell | | | 
| VA117A |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R71TA | Photocell | | | 
| CE13 GS117ATA NU13 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R71TAV | Photocell | | | 
| CE13V NU13V VS117ATA |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R71TBV | Photocell | | | 
| VA117ATA |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R82AV | Photocell | | | 
| 919 NU31V VS118T |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R9518 | Klystron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R9729 | Klystron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
R9559 | Klystron | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
Radion | Triode | 1924 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
Radiotron | Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RC | Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RC Special | Triode | 1928 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RC2 | RCC Triode | 1926 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RC210 | RCC Triode | 1928 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RC4 | RCC Triode | 1926 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RC407 | RCC Triode | 1928 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RC6 | RCC Triode | 1926 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RC607 | RCC Triode | 1928 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RD4 | Triode | 1928 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RE16 | Triode | 1917 | | 
| |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
Red Top | Triode | | UX4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
REL42 | Triode | | | 
| CV90 E1368 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
REL7 | Micropup Triode | | | 
| 4C27 CV92 |
|
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RF30 | Rectifier HW | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RFP15 | Pentode | 1936 | B5 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RG1-125 | Rectifier MV | 1938 | | 
| CV1263 CV1623 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RG1-150 | Rectifier FW | 1934 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RG1-240 | Rectifier MV | 1938 | | 
| CV1626 CV2738 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RG1-250 | Rectifier HW | 1934 | | 
| 2V/400A 866A CV1262 GU12A |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RG1-75 | Rectifier FW | 1934 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RG12D60 | Rectifier FW | 1940 | De6 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RG250/1000 | Rectifier MV | 1937 | | 
| GU50 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RG250/2000 | Rectifier MV | 1937 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RG250/3000 | Rectifier MV | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RG3-250 | Rectifier MV | 1938 | | 
| |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RG3-1250 | Rectifier MV | 1957 | | 
| CV1629 POVT197 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RG4-1000 | Rectifier MV | 1953 | | 
| CV3670 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RG4-1250 | Rectifier MV | 1956 | | 
| 2V/474C AH221 CV5 CV152 CV1629 ESU200 GU18 GU21 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RG4-250 | Rectifier HW | | | 
| CV3667 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RG4-3000 | Rectifier MV | 1959 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RGQZ1.4/0.4D | Rectifier HW | 1935 | B4 | 
| RGQZ1.4/0.4 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RJW | Triode | 1917 | | 
| EVE173 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK-1851 | Pentode | 1938 | IO | 
| 1851 CV599 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK-4D32 | Beam Tetrode | 1959 | B7A | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK-707B | Reflex Klystron | | IO | 
| 707B QK26 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK-715 | Tetrode | | B4A | 
| 715C |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK20 | Pentode | 1935 | | 
| 4052A |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK20A | Pentode | 1938 | | 
| CV704 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK23 | Pentode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK25 | Pentode | | | 
| CV3671 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK28 | Pentode | 1938 | | 
| 4069A CV3672 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK28A | Pentode | | | 
| CV3673 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK33 | Double Triode | 1938 | | 
| 1642 2C21 CV875 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK38 | Triode | 1938 | | 
| CV2591 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK39 | Beam Tetrode | | UX5 | 
| 807 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK44 | Pentode | 1938 | | 
| 837 CV637 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK45 | Pentode | 1938 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK46 | Pentode | 1938 | UX5 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK47 | Beam Tetrode | 1938 | | 
| 814 CV629 CV3677 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK48 | Pentode | 1938 | | 
| CV690 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK48A | Pentode | | | 
| CV690 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK49 | Beam Tetrode | 1938 | | 
| CV3679 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK58 | Pentode | | | 
| 838 CV638 HF130 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK6112 | Reflex Klystron | 1954 | | 
| CV2116 RK6112A VX5029 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RK72 | Rectifier HW | | | 
| 72 CV709 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RL-16 | Barretter | | B9A | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RL12P35 | Beam Tetrode | 1936 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RL12P50 | Pentode | 1941 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RL12T1 | Triode | 1937 | De6 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RL12T2 | Triode | 1945 | De6 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RL16 | Triode | 1946 | | 
| CV1137 EC52 VR137 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RL2T2 | Triode | 1936 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RL2P3 | Pentode | 1936 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RL37 | Triode | 1946 | | 
| CV66 EC54 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RPL16 | Photocell | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RPL8 | Photocell | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RR3-1250 | Rectifier HW | 1957 | | 
| 4B32 CV2518 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RR3-1250A | Rectifier HW | 1957 | | 
| |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RS1003 | Pentode | 1961 | | 
| F3a SRS551 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RS237 | Triode | | | 
| 211 UV-211A |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RS241 | Triode | 1931 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RS242 | Triode | 1935 | | 
| RS242X |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RS242X | Triode | 1935 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RS282 | Triode | 1934 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RT323 | Tetrode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RT55/100 | Voltage Stabiliser | | | 
| |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RV120/500 | Rectifier FW | 1938 | | 
| 1561 DW4-500 U14 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RV12P | Pentode | | De6 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RV12P2000 | Pentode | 1937 | De6 | 
| PV1 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RV12P3000 | Pentode | 1943 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RV12P4000 | Pentode | 1935 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RV2.4P700 | Pentode | 1937 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RV2.4P701 | Pentode | 1937 | | 
| |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RV258 | Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RV2P800 | Pentode | 1935 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RW2 | Travelling Wave Tube | 1963 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RW3 | Travelling Wave Tube | 1962 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RW4 | Travelling Wave Tube | 1962 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RW6 | Travelling Wave Tube | 1963 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RWO40 | Backward Wave Oscillator | 1962 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RX-233A | Thyratron | 1943 | IO | 
| 2C33 CV793 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RX3-120 | Rectifier HW | | | 
| CV1261 NU5 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RY12-100 | Rectifier HW | 1958 | | 
| CV2967 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RYG-10 | Counter/Indicator | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RZ | Rectifier HW | | | 
| 40SUA C10B ID5 U4020 UR1C |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RZ1-150 | Rectifier FW | 1934 | L4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
RZ1-250 | Rectifier HW | | | 
| AU12 CV1266 CV2853 NU13A NU13 U15 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
Red Ring | Triode | | | 
| |
|