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| electron Tube Data sheets |
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| RCA HB3 collected by Adri de Keijzer † |
| Item | Date | Size |
| 1 Preface | 2009-07-03 16:39:02 | 94655 bytes |
| 2 Interchangeability List 1956 | 2009-07-03 16:42:30 | 272383 bytes |
| 3 Definitions 1943 | 2009-08-02 14:56:44 | 362755 bytes |
| 4 Tube Ratings 1943 | 2009-07-03 16:47:54 | 844804 bytes |
| 5 Types of Cathodes 1943 | 2009-07-03 17:14:02 | 390139 bytes |
| 6 Conversion Factors 1956 | 2009-07-04 13:42:12 | 87268 bytes |
| 7 Tube Outlines 1955-58 | 2009-07-04 13:59:18 | 423108 bytes |
| 8 Caps 1957 | 2009-07-15 15:53:28 | 142470 bytes |
| 9 Bases 1954-62 | 2009-07-15 16:08:52 | 1405631 bytes |