31,980
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P6032: Difference between revisions
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The body of the probe contains a clipping line composed of what appears to be 21 mm of RG-174 coax connected to the triode's cathode at one end | The body of the probe contains a clipping line composed of what appears to be 21 mm of RG-174 coax connected to the triode's cathode at one end | ||
and open at the other end. The circuit description in the manual describes it vaguely, saying only that, "The clipping line reduces signal aberration to a minimum." Page 40 of the Tektronix Probe Circuits concept book explains in more depth, "The section of 50 Ω coax tied to V1 cathode damps ringing in the high frequency response. The coax is terminated in an open circuit to reflect a short circuit 1/4 wavelength from the termination. Since voltage does not exist at a short circuit, the ringing is damped." | and open at the other end. The circuit description in the manual describes it vaguely, saying only that, "The clipping line reduces signal aberration to a minimum." Page 40 of the Tektronix Probe Circuits concept book explains in more depth, "The section of 50 Ω coax tied to V1 cathode damps ringing in the high frequency response. The coax is terminated in an open circuit to reflect a short circuit 1/4 wavelength from the termination. Since voltage does not exist at a short circuit, the ringing is damped." The "V1" in the preceding excerpt refers to V103 in the P6032. | ||
{{BeginSpecs}} | {{BeginSpecs}} | ||