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P6042: Difference between revisions
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|designers=Cal Hongel; | |designers=Cal Hongel; | ||
|manuals= | |manuals= | ||
* [ | * [[Media:070-0629-00.pdf|Tektronix P6042 Manual]] | ||
}} | }} | ||
The '''Tektronix P6042''' is a DC to 50 MHz current probe [[introduced in 1967]]. It was designed by [[Cal Hongel]]. | The '''Tektronix P6042''' is a DC to 50 MHz current probe [[introduced in 1967]]. It was designed by [[Cal Hongel]]. | ||
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The P6042's core halves are precision lapped and potted with epoxy. They have Mu-metal screening. The lower (fixed) core also contains the Hall element. | The P6042's core halves are precision lapped and potted with epoxy. They have Mu-metal screening. The lower (fixed) core also contains the Hall element. | ||
Unfortunately, the P6042 probe is quite sensitive mechanically, and in many units offered for sale, the cores are damaged. | Unfortunately, the P6042 probe is quite sensitive mechanically, and in many units offered for sale, the cores are damaged. | ||
The amplifier front-end is constructed using a 156-0014-00 differential amplifier integrated circuit, labelled "M18", which [[Media:Tektronix_Xref_sm.pdf|cross-references]] to a long-obsolete Teledyne "831-BE". [[Jim Williams]]' [https://www.analog.com/media/en/technical-documentation/application-notes/an61fa.pdf Applicaion Note 61] contains a replacement circuit using LT1228 opamps. | |||
==Prices== | ==Prices== | ||