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531: Difference between revisions
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early delay line is not "before" the vertical amp, it's in the middle
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Vintage dave (talk | contribs) m (early delay line is not "before" the vertical amp, it's in the middle) |
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|manuals= | |manuals= | ||
'''531''' | '''531''' | ||
* [[Media:070-203.pdf|Tektronix 531/541 Manual] | * [[Media:070-203.pdf|Tektronix 531/541 Manual]] (OCR) | ||
* [[Media:tek_531_fcp.pdf|531 Factory Calibration Procedure]] (OCR) | * [[Media:tek_531_fcp.pdf|531 Factory Calibration Procedure]] (OCR) | ||
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which has more convenient controls and a slightly faster (15 MHz) vertical amplifier. | which has more convenient controls and a slightly faster (15 MHz) vertical amplifier. | ||
In serial numbers 101 to 7600, the 531's L-C [[delay line]] is | In serial numbers 101 to 7600, the 531's L-C [[delay line]] is in the middle of the vertical amplifier. | ||
In serial numbers 7601 and up, the 531's delay line is between the vertical amplifier and the CRT. | In serial numbers 7601 and up, the 531's delay line is between the vertical amplifier and the CRT. | ||
This change was the result of [[John Kobbe]]'s insight that if the far end of the delay line was an open circuit (which the CRT approximates), | This change was the result of [[John Kobbe]]'s insight that if the far end of the delay line was an open circuit (which the CRT approximates), | ||
the reflected wave could be absorbed at the source end. | the reflected wave could be absorbed at the source end. | ||
This "single termination" approach made it possible to do away with the | This "single termination" approach made it possible to do away with the input chassis. | ||
All Tek scopes | All subsequent Tek scopes with a lumped-constant delay line used this topology. | ||
There is also a rack-mount version, Types RM31 and RM31A. | There is also a rack-mount version, Types RM31 and RM31A. | ||
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{{Spec | Weight| 61,5 lbs / 27,8 kg }} | {{Spec | Weight| 61,5 lbs / 27,8 kg }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
==Links== | |||
{{Documents|Link=531}} | |||
{{Documents|Link=531A}} | |||
==Pictures== | ==Pictures== | ||
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</gallery> | </gallery> | ||
== | ==Components== | ||
{{Parts|531}} | {{Parts|531}} | ||
{{Parts|531A}} | {{Parts|531A}} | ||