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m (→top: clean up, replaced: {{Oscilloscope Sidebar → {{Oscilloscope Sidebar |manufacturer=Tektronix |designers=, title=Tektronix → model=) |
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{{Oscilloscope Sidebar |manufacturer=Tektronix |designers= | | {{Oscilloscope Sidebar |manufacturer=Tektronix |designers= | | ||
series= | | |||
model= 503 | | model= 503 | | ||
summary=450 kHz differential-input scope | | summary=450 kHz differential-input scope | |