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General Photography
Post you old radio/tv/electronics shot.
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<blockquote data-quote="Bob Blaylock" data-source="post: 262501" data-attributes="member: 16749"><p>Are you sure of that? The Tektronix 502A was an early 1960s-vintage oscilloscope—mostly vacuum-tube based, with just a very few of the newfangled transistors. It was the time when vacuum tubes were just barely beginning to give way to semiconductors, that would rapidly replace them. By the 1970s, weren't nearly all new electronics mostly semiconductor-based? I would expect that the 502A would have been long obsolete by then.</p></blockquote><p></p>
[QUOTE="Bob Blaylock, post: 262501, member: 16749"] Are you sure of that? The Tektronix 502A was an early 1960s-vintage oscilloscope—mostly vacuum-tube based, with just a very few of the newfangled transistors. It was the time when vacuum tubes were just barely beginning to give way to semiconductors, that would rapidly replace them. By the 1970s, weren't nearly all new electronics mostly semiconductor-based? I would expect that the 502A would have been long obsolete by then. [/QUOTE]
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General Photography
Post you old radio/tv/electronics shot.
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