Germanium transistors: Difference between revisions
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Many Tektronix scopes from the 1960's contain '''Germanium transistors''', e.g., [[OC170]], [[OC171]], [[2N2207]]. | Many Tektronix scopes from the 1960's contain '''Germanium transistors''', e.g., [[OC170]], [[OC171]], [[2N1516]], and [[2N2207]]. | ||
These transistors are prone to failure. One particular failure mechanism is the growth of tin whiskers from the tin-coated inside walls of the transistor case. | These transistors are prone to failure. One particular failure mechanism is the growth of tin whiskers from the tin-coated inside walls of the transistor case. | ||
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Reasonable silicon replacements for small-signal NPN and PNP | Reasonable silicon replacements for small-signal NPN and PNP | ||
germanium transistors are 2N3904 and 2N3906, respectively. | germanium transistors are the 2N3904 and 2N3906, respectively. | ||
When transistors appear in pairs in the original circuit | When transistors appear in pairs in the original circuit | ||