Information on a jackson 648 tube tester antique radio. Bold designators are close or identical, italic designators are different ratings, different pinouts or different filament voltages. Tube 3v4 or rohre 3v4 id2119, vacuum pentode, miniatur7pinbase b7g, usa 1940 and. All content on this page is 19972019 duncan amplification. Stage 2 impure 1bromobutane is extracted from the reaction mixture and is then transferred to the round bottom flask in the apparatus shown in diagram 2. This 1932 rca below manual provides all the data sheet information, of the first. Welcome to the tube data sheet locator, a popular web resource for finding. Please see the substitutes at the top of the page for more details. As a matter of fact, that booklet would have been better labeled as the obsolete data for the 648. Recent listings manufacturer directory get instant tube data sheet locator. Ge essential characteristics, the whole 228 page book in an indexed pdf file big, 11mb.
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