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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U134 | Rectifier 2 x HW | 1939 | | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U235 | Tungar Rectifier | | | 
| 68532 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U25 | Rectifier EHT | | | 
| 2L2 KY50 U47 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U251 | Efficiency Diode | | B9A | 
| U329 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U26 | Rectifier EHT | | B9A | 
| 2J2 KY80 R20 U49 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U600 | Tungar Rectifier | | | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U281 | Efficiency Diode | 1950 | IO | 
| CY31 OM1 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U282 | Efficiency Diode | | IO | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U33 | Rectifier EHT | | B4 | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U35 | Rectifier EHT | | IO | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U37 | Rectifier EHT | 1950 | | 
| 1T2 CV2289 CV4061 R16 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U45 | Rectifier EHT | 1955 | | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U47 | Rectifier EHT | | | 
| 2L2 KY50 U25 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U49 | Rectifier EHT | | | 
| 2J2 KY80 R20 U26 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U4B | Rectifier | | | 
| CV141 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U6 | Rectifier HW | | | 
| CV3744 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U60 | Rectifier EHT | | IO | 
| CV4075 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U600 | Tungar Rectifier | 1960 | | 
| 68530 CV3756 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
U7 | Rectifier | | | 
| CV147 CV149 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UA-55 | Double Beam Tetrode | 1947 | | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UABC80 | Triple Diode Triode | 1952 | B9A | 
| 10LD12 28AK8 DH109 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UB41 | Double Diode | | B8A | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UBF80 | Double Diode Pentode | 1950 | B9A | 
| 171DDP 17C8 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UBF89 | Double Diode Pentode | 1956 | B9A | 
| 10FD12 19FL8 WD119 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UBL21 | Double Diode Pentode | 1941 | B8B | 
| UBL71 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UCC84 | Double Triode | 1954 | B9A | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UCC85 | Double Triode | 1954 | B9A | 
| 10L14 26AQ8 B109 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UCF80 | Triode Pentode | 1958 | B9A | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UCH21 | Triode Heptode | 1941 | B8B | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UCH81 | Triode Heptode | 1953 | B9A | 
| 10C14 19D8 X119 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UCL81 | Triode Pentode | 1949 | | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UCL82 | Triode Pentode | 1956 | B9A | 
| 10PL12 50BM8 LN119 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UCL83 | Triode Pentode | 1955 | B9A | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UD2 | Output Triode | 1927 | B4 | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UD4 | Output Triode | 1927 | B4 | 
| E414 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UD41 | Triode | 1927 | | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UD41 | Voltage Doubler | 1937 | | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UD75 | Diode | | | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UE311 | Triode | | | 
| 211 242C 4242A CV25 ES85 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UEL71 | Triode Pentode | 1948 | B8B | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UL41 | Pentode | 1947 | B8A | 
| 451PT 45A5 CV1977 MUL41 N142 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UL42 | Pentode | 1948 | | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
ULL80 | Double Pentode | 1959 | | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
Unknown | | | | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UU120/250 | Rectifier FW | | | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UV-211 | Power Triode | 1950 | | 
| 211 |
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UVV2 | Photocell | | | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UVV4A | Photocell | | | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UX-867 | Photocell | | | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UX-868 | Photocell | | | 
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Type | Structure | Date | Base | PDF | Sensibly equivalent¶ to: |
UY227 | Triode | 1927 | | 
| 127 227 27 427 AY225 AY227 C327 F209A G-27 PH227 PU027 |
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