Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1919 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1919 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1923 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D.06HF | Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1920 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1928 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D024 | Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D030 | Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D051 | Triode | | | 
| CV1 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Diode | 1937 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D11F | Pentode | 1945 | | 
| D1F |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D12F | Pentode | 1945 | | 
| D2F |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Cathode-Ray Tube | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Double Diode | 1935 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Barretter | | | 
| CV1539 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D152 | Double Diode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D1F | Pentode | 1945 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | 1936 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D2F | Pentode | 1945 | | 
| D12F |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Triode (HF | 1924 | | 
| Det LF Variants) and |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Cathode-Ray Tube | 1976 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Rectifier EHT | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
| Pentode | 1958 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D3F | Pentode | | | 
| |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D41 | Double Diode | 1935 | B5 | 
| CV1170 CV1187 NR46 NR66 |
|
|
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D5-100W | Cathode-Ray Tube | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D5-192 | Cathode-Ray Tube | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D5-194GH | Cathode-Ray Tube | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D43 | Diode | | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D61 | Diode | | | 
| CV1092 EA50 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D7/200GH | Cathode-Ray Tube | 1969 | B13B | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D7/201GH | Cathode-Ray Tube | | | 
| |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DA | Triode | 1935 | | 
| 4DI C30B CV1109 HL1320 HL13C |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DA1 | Triode | 1936 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DA100 | Triode | 1933 | | 
| BS100 CV1219 MZ1-100 NT36 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DA2 | Triode | 1936 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DA250 | Triode | 1954 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DA3 | Triode | 1936 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DA30 | Triode | 1935 | B4 | 
| CV563 CV1178 DO30 NR56 POVT111 V503 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DA42 | Triode | 1956 | UX4 | 
| 3B/402A CV2394 ES1101 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DA60 | Triode | 1929 | L4 | 
| 660T BS60 CV527 CV1206 DO60 ES60 MZ05-60 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DA90 | Diode | 1949 | | 
| 1A3 1D13 CV753 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DAC1 | Diode Triode | 1939 | Ct8 | 
| CV2887 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DAF70 | Diode Pentode | 1950 | | 
| CV2104 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DAF96 | Diode Pentode | 1953 | B7G | 
| 1AH5 1AM5 1FD1 ZD25 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DB10-78 | Cathode-Ray Tube | 1958 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DB10-94 | Cathode-Ray Tube | 1960 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DB13-10 | Cathode-Ray Tube | 1960 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DB13-2 | Cathode-Ray Tube | 1958 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DB16-22 | Cathode-Ray Tube | 1957 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DB4-1 | Cathode-Ray Tube | 1953 | B9G | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DB4-2 | Cathode-Ray Tube | 1953 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DB7-5 | Cathode-Ray Tube | 1950 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DB7-6 | Cathode-Ray Tube | 1950 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DB7-78 | Cathode-Ray Tube | 1960 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DC/HL | Triode | 1931 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DC/P | Triode | 1931 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DC/SG | Tetrode | 1931 | B5 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DC2/200 | Rectifier FW | 1932 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DC/HLDD | Double Diode Triode | 1933 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DC2/P | Output Triode | 1931 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DC2/Pen | Pentode | 1931 | B5 | 
| DC/2Pen |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DC2/SGVM | Tetrode | 1932 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DC3/HL | Triode | 1931 | B5 | 
| |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DC762A | Rectifier HW | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DC80 | Triode | | | 
| CV2172 |
|
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DD101 | Double Diode | 1938 | MO | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DD13 | Double Diode | 1936 | B5 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DD207 | Double Diode | 1937 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DD4 | Double Diode | 1934 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DD41 | Double Diode | 1938 | MO | 
| CV1403 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DD4D | Double Diode | 1938 | B7 | 
| |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DD620 | Double Diode | 1934 | B5 | 
| ZD |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DD818 | Double Diode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DDA/13 | Double Diode | 1935 | | 
| 2D13C |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DDA/13L | Double Diode | 1935 | Ct5 | 
| 2D13A |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DD/Pen | Double Diode Pentode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DDPP4M | Double Diode Pentode | | | 
| CV519 Pen4DD |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DDR100 | Double Diode | 1947 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DDR2 | Pentode | | | 
| CV173 EF55 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DDT | Double Diode Triode | 1933 | B7 | 
| 11A2 A23A AC/HL/DD HD4 MHD4 TDD4 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DDT13 | Double Diode Triode | 1936 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DDT16 | Double Diode Triode | 1934 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DDT215 | Double Diode Triode | 1937 | B5 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DDT4 | Double Diode Triode | 1936 | | 
| 11A2 A23A AC/HL/DD HD4 MHD4 TDD4 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE.06 | Triode | 1926 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D.E.34 | Bi-Grid | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
D.E.4 | Bi-Grid | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE | Bi-Grid | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE06 | Bi-Grid | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE06HF | RF Triode | 1926 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE06LF | AF Triode | 1926 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE11 | Triode | 1924 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE2 | Triode | 1926 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE25HF | Triode | 1926 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE2HF | RF Triode | 1925 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE2LF | LF Triode | 1925 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE2 | Triode | 1924 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE3 | Triode | 1924 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE3HF | RF Triode | 1926 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE3LF | AF Triode | 1926 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE4 | Triode | 1924 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE5 | Triode | 1924 | B4 | 
| CV2891 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE55 | Triode | 1926 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE5A | Triode | 1924 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE5B | Triode | 1924 | B4 | 
| CV2892 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DE6 | Triode | 1924 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DEH210 | Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DEH410 | Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DEH610 | Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DEH612 | Triode | 1927 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DEL210 | Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DEL410 | Triode | 1927 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DEL610 | Triode | 1927 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DEM2 | Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DEP215 | Triode | 1927 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DEP240 | Triode | 1927 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DEP410 | Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DEP610 | Triode | 1927 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DEQ | Triode | 1923 | | 
| CV1156 NR18 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DER | Triode | 1921 | B4 | 
| POVT33 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DES1 | Thermal Delay Switch | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DET1 | Triode | 1924 | L4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DET1SW | Triode | | | 
| 161D CV2895 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DET10 | Triode | | | 
| CV2900 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DET16 | Triode | 1954 | | 
| CV1363 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DET18 | Triode | 1954 | | 
| 3-50AG 35T CV419 CV668 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DET1SW | Triode | | | 
| CV2895 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DET2 | Triode | | | 
| |
|
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DET23 | Triode | | | 
| CV354 TD03-5 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DET24 | Triode | | | 
| CV397 TD04-20 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DET28 | Triode | | B9G | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DET29 | Triode | 1959 | | 
| CV2397 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DET3 | Triode | | | 
| 7886 CV1034 VT34 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DET8 | Triode | | | 
| CV2898 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DET9 | Triode | | | 
| CV2899 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF.ORA | Triode | 1924 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF1 | Pentode | 1939 | Ct8 | 
| CV2907 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF33 | Pentode | 1939 | IO | 
| 1N5GT CV1823 Z14 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF60 | Pentode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF61 | Pentode | | | 
| CV2371 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF62 | Pentode | 1956 | | 
| 1AD4 CV2237 XFR1 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF63 | Pentode | 1958 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF64 | Pentode | 1953 | | 
| CV2260 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF66 | Pentode | 1951 | | 
| CV2107 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF70 | Pentode | 1948 | | 
| CK505AX CV386 CV443 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF703 | Pentode | 1963 | | 
| 5886 CK571AX CK5886 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF72 | Pentode | 1950 | | 
| CV2101 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF73 | Pentode | 1950 | | 
| CV2103 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF75 | Pentode | | | 
| CV2102 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF92 | Pentode | 1949 | | 
| 1F2 1L4 CV1758 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF96 | Pentode | 1953 | B7G | 
| 1AJ4 1F1 W25 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DF97 | Pentode | 1954 | B7G | 
| 1AN5 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DFA0 | Triode | 1924 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DFA1 | Triode | 1924 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DFA2 | Triode | 1924 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DFA3 | Triode | 1925 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DFA4 | Triode | 1924 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DFA5 | Triode | 1926 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DFA6 | Triode | 1926 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DFA7 | Triode | 1926 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DFA8 | Triode | 1927 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DFA9 | Triode | 1928 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DG12C | Indicator | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DG13-2 | Cathode-Ray Tube | 1950 | | 
| CV2191 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DG16-22 | Cathode-Ray Tube | 1957 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DG2 | Bi-grid | 1931 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DG210 | Bi-grid | 1931 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DG407 | Bi-grid | 1932 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DG4-1 | Cathode-Ray Tube | 1953 | B9G | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DG7-5 | Cathode-Ray Tube | 1950 | B9G | 
| CV2175 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DG7-31 | Cathode-Ray Tube | 1957 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DG7-31/01 | Cathode-Ray Tube | 1959 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DG7-32 | Cathode-Ray Tube | 1955 | | 
| CV2431 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DG7-32/01 | Cathode-Ray Tube | 1955 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DG7-36 | Cathode-Ray Tube | 1955 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DG7-6 | Cathode-Ray Tube | 1950 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH | Triode | 1931 | B5 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH10-78 | Cathode-Ray Tube | 1958 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH10-94 | Cathode-Ray Tube | 1960 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH101 | Double Diode Triode | | B8B | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH107 | Double Diode Triode | 1951 | B7G | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH109 | Triple Diode Triode | | | 
| 10LD12 UABC80 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH118 | Double Diode Triode | | | 
| 10LD3 14L7 UBC41 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH119 | Double Diode Triode | | | 
| 10LD13 14L7 UBC81 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH13-10 | Cathode-Ray Tube | 1960 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH13-76 | Cathode-Ray Tube | 1960 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH13-78 | Cathode-Ray Tube | 1959 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH13-97 | Cathode-Ray Tube | 1958 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH142 | Double Diode Triode | | | 
| 10LD3 141DDT 14L7 DH18 UBC41 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH147 | Double Diode Triode | | | 
| 6R7G DL63 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH149 | Double Diode Triode | | B8B | 
| 7C6 CV887 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH150 | Double Diode Triode | 1948 | B8A | 
| 62DDT 6CV7 6LD3 DH718 EBC41 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH18 | Double Diode Triode | | | 
| 10LD3 141DDT 14L7 DH141 UBC41 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH2 | Double Diode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH3-91 | Cathode-Ray Tube | 1953 | B8B | 
| 1CP1 CV2302 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH30 | Double Diode Triode | 1934 | B7 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH42 | Double Diode Triode | 1936 | | 
| 11A2 AC/HL/DD DDT4 DDT H4D MHD4 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH63 | Double Diode Triode | 1937 | IO | 
| 6Q7G CV587 W1526 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH63M | Double Diode Triode | 1937 | IO | 
| 6Q7G CV587 W1526 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH7-78 | Cathode-Ray Tube | 1960 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH7-91 | Cathode-Ray Tube | 1960 | B9G | 
| 24D 3AFP31 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH718 | Double Diode Triode | 1955 | | 
| 6CV7 6LD3 EBC41 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH76 | Triode | 1947 | IO | 
| 12Q7GT DL74 DL74M |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH81 | Pentode | 1947 | B8B | 
| 6Q7GT 7B6 CV882 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DHL | Triode | 1934 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DHM10-93 | Cathode-Ray Tube | 1960 | | 
| CV5369 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DK1 | Heptode | 1939 | Ct8 | 
| CV2910 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DK32 | Heptode | 1945 | IO | 
| 1A7G 1A7GT CV1802 X14 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DK40 | Heptode | 1948 | | 
| MDK40 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DK92 | Heptode | 1951 | B7G | 
| 1AC6 1C2 CV5172 X18 X20 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DK96 | Heptode | 1953 | B7G | 
| 1AB6 1C3 X25 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL1 | Pentode | 1939 | Ct8 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL145 | Double Diode Triode | | | 
| 10LD11 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL-2 | Triode | | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL-4 | Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL-5 | Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL-7 | Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL-14 | Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL-15 | Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL2 | Pentode | 1939 | Ct8 | 
| CV2911 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL33 | Pentode | 1946 | IO | 
| 3Q5GT CV819 N16 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL35 | Beam Tetrode | 1946 | IO | 
| 1C5G 1C5GT CV1803 N14 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL37 | Pentode | | | 
| CV2299 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL63 | Double Diode Triode | 1939 | IO | 
| 6R7G CV2912 DH147 OM4 |
|
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL67 | Pentode | 1950 | | 
| |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL69 | Pentode | 1956 | | 
| CV2361 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL70 | Pentode | 1956 | B8D & B8D/F | 
| CV2105 |
|
|
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL74M | Pentode | 1940 | | 
| 12Q7GT DH76 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL82 | Double Diode Triode | 1947 | B8B | 
| 7B6 DH81 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL91 | Pentode | 1948 | | 
| 1S4 CV783 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL92 | Pentode | 1947 | B7G | 
| 1P10 2P2 3S4 CV820 CV2370 N17 VT-174 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL93 | Pentode | 1949 | | 
| 3A4 CV807 CV2390 E1485 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL95 | Pentode | 1950 | | 
| 3Q4 CV818 N18 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL96 | Pentode | 1953 | B7G | 
| 1P1 3C4 N25 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DL98 | Pentode | 1957 | B7G | 
| 3B4 CV2240 HD30 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DLS1 | Thermal Delay Switch | 1933 | | 
| CV2913 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DLS15 | Thermal Delay Switch | 1949 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DLS16 | Thermal Delay Switch | 1949 | IO | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DLS19 | Thermal Delay Switch | 1946 | | 
| CV342 SH342 VLS631 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DM160 | Fluorescent Column | 1957 | | 
| CV5412 |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DM71 | Tuning Indicator | 1952 | | 
| 1M1 1M3 Y25 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DN13-10 | Cathode-Ray Tube | 1960 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DN13-76 | Cathode-Ray Tube | 1960 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DH13-78 | Cathode-Ray Tube | 1959 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DN143 | Double Diode Pentode | 1941 | B8B | 
| EBL21 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DN41 | Double Diode Pentode | 1935 | | 
| AC2/Pen/DD DDPP4B PT4D |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DN7-78 | Cathode-Ray Tube | 1960 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DO10 | Output Triode | 1932 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DO20 | Output Triode | 1929 | | 
| |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DO25 | Triode | 1930 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DO26 | Triode | 1933 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DO30 | Triode | 1937 | | 
| CV1178 CV563 DA30 NR56 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DO60 | Output Triode | 1930 | | 
| BS60 CV1206 DA60 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DO75 | Output Triode | 1931 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DP | Output Triode | 1934 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DP/Pen | Pentode | 1933 | | 
| DP-Pen |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DP-Pen | Pentode | 1933 | B7 | 
| DP/Pen |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DP10-78 | Cathode-Ray Tube | 1958 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DP10-94 | Cathode-Ray Tube | 1960 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DP13-2 | Cathode-Ray Tube | 1957 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DP13-34 | Cathode-Ray Tube | 1957 | B14A | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DP16-22 | Cathode-Ray Tube | 1957 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DP4-1 | Cathode-Ray Tube | 1953 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DP61 | Pentode | | | 
| 6AK5 EF95 PM05 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DP7-78 | Cathode-Ray Tube | 1960 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DPT | Pentode | 1931 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DQ2 | Rectifier (MV) | 1938 | UX4 | 
| 866A |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DR13-2 | Cathode-Ray Tube | 1957 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DR2000 | Indicator | 1968 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DR7-5 | Cathode-Ray Tube | 1950 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DR7-6 | Cathode-Ray Tube | 1950 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DS/Pen | Pentode | 1933 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DS103 | | | | 
| CV94 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DS310 | Triode | 1938 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DS311 | Triode | 1938 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DS320 | Triode | 1938 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DS323 | Pulse Triode | 1937 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DSB | RF Tetrode | 1933 | B5 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DT215 | Double Diode Triode | 1936 | B5 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DT41 | Double Diode Triode | 1937 | B7 | 
| TDD4 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DU1 | Rectifier HW | 1930 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DU10 | Rectifier HW | 1929 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DU15 | Rectifier HW | 1930 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DU2 | Rectifier FW | 1928 | | 
| DU/2 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DU3 | Rectifier HW | 1930 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DU4 | Rectifier HW | 1930 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DU5 | Rectifier FW | 1926 | | 
| |
|
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DV-3A | Triode | 1925 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DV34 | Triode | | | 
| 3B/401J CV127 S30A |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DV-5 | Triode | 1925 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DV55 | Heil Tube | | | 
| CV230 V230C/1D |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DV-6 | Triode | 1923 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DV-6A | Triode | 1923 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DV-7 | Triode | 1923 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DVS-Pen | Pentode | 1933 | B5 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DVSG | Vari-μ Tetrode | 1934 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DW1 | Rectifier FW | 1930 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DW15 | Rectifier FW | 1929 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DW2 | Rectifier FW | 1930 | B4 | 
| 1821 500BU CV1443 R1 UU5 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DW2X | Rectifier FW | | | 
| 1821 500BU CV1443 R1 UU5 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DW3 | Rectifier FW | 1931 | B4 | 
| DW4/350 R2 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DW30 | Rectifier FW | 1929 | B4 | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DW4 | Rectifier FW | 1931 | | 
| |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DW4/500 | Rectifier FW | 1939 | | 
| 1561 460BU AU4 CV1064 DW4-500 NU3 R3 R4 RV120/500 S11D U12/14 UU5 VU64 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DW5 | Rectifier HW | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DW6 | Rectifier FW | 1931 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DW7 | Rectifier HW | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DW7X | Rectifier HW | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DW8 | Rectifier FW | 1930 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DY51 | Rectifier HW | 1964 | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DY70 | Rectifier HW | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DY802 | Rectifier HW | 1965 | B9A | 
| |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DY86/87 | Rectifier EHT | 1955 | B9A | 
| 152A 1S2A 1S2 DY86 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DY87 | Rectifier EHT | 1955 | B9A | 
| 152A 1S2A 1S2 DY86 |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
DeForest | Triode | | | 
| |
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
Delta Diode | Diode | 1923 | | 
| |
|
|
Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
Dry-Battery | Triode | 1922 | | 
| |
|