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P6046: Difference between revisions
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be found with an access hole drilled for R235 (GAIN SWITCHING BALANCE) since this | be found with an access hole drilled for R235 (GAIN SWITCHING BALANCE) since this | ||
is adjusted to remove the trace shift when the probe switches from 1× to 10× mode. | is adjusted to remove the trace shift when the probe switches from 1× to 10× mode. | ||
To calibrate the amplifier, first check the power supply voltages. They are floating. | |||
Do not check with respect to ground! When adjusting, watch for exposed line voltage | |||
in the power supply, especially the fuse holder. The power supply must be adjusted | |||
with everything connected together. Note that you can check the voltages from the | |||
back of the amplifier output board. | |||
==Manuals== | ==Manuals== | ||
There are three versions of the manual | |||
* 070-0756-00 - (C) 1968 | |||
* 070-7129-00 - (C) 1988 | |||
* 070-7129-01 - (C) 1992 | |||
The 1968 version assumes you have a [[1A5]] for absolute gain calibration of the probe | |||
without the amplifier. | |||
* [http://w140.com/Tektronix_P6046_Instruction_Manual.pdf P6046 Manual (no schematics, PDF)] | * [http://w140.com/Tektronix_P6046_Instruction_Manual.pdf P6046 Manual (no schematics, PDF)] | ||