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Tektronix 555 oscilloscope indicator unit on eBay By Dave Voorhis · #160719 ·
Morning fun - working scope with no tubes? By Dave Voorhis · #160269 ·
From 2014: Tektronix Announces Winner of Europe’s Oldest Working Oscilloscope Contest By Dave Voorhis · #160136 ·
Defective 465: into the dumpster it goes! By Dave Voorhis · #159555 ·
Tek 576 Curve Tracer HV Transformer winding By Dave Voorhis · #159287 ·
letter series plugins By Dave Voorhis · #158448 ·
OT!!! OT - WARNING OT! - Spark plug internal resistance -- OT OT OT ...with a later possible tie-in to Tek scopes! By Dave Voorhis · #158109 ·
IMPORTANT: Photos are eating up our storage By Dave Voorhis · #157099 ·
Powering up a 577 for the first time By Dave Voorhis · #156807 ·
577 caused 754D go malfunction By Dave Voorhis · #156761 ·
577 Curve tracer ringing CRT and noisy step generator By Dave Voorhis · #156399 ·
577 Curve tracer ringing CRT and noisy step generator By Dave Voorhis · #156398 ·
More Complete List of Concept Series and Measurements Concepts Books By Dave Voorhis · #156234 ·
More Complete List of Concept Series and Measurements Concepts Books By Dave Voorhis · #156168 ·
577 Curve tracer ringing CRT and noisy step generator By Dave Voorhis · #156163 ·
577 Curve tracer ringing CRT and noisy step generator By Dave Voorhis · #156138 ·
I wonder if there is much interest in vacuum tube oscilloscopes such as the 500 series By Dave Voorhis · #155648 ·
Apologies from the Moderator By Dave Voorhis · #153441 ·
Apologies from the Moderator By Dave Voorhis · #153412 ·
Noticed a 647 for sale in Poland By Dave Voorhis · #153279 ·
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