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File:Tek 128 front.jpg | |||
File:Tek 128 front2.jpg | |||
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Image:Tek 128 manphoto.jpg|Catalog photo | Image:Tek 128 manphoto.jpg|Catalog photo | ||
File:Tek 128 schematic.png|Schematic | File:Tek 128 schematic.png|Schematic | ||
Revision as of 11:13, 4 January 2016
The Tektronix Type 128 is a power supply for Type P500CF cathode-follower probes. It was introduced in 1958.
It provides two voltages to the probe: regulated +120 V DC, and unregulated +6.3 V DC. Low voltage rectification is done by a selenium rectifier. Higher voltage rectification is done by a 6X4 tube. The voltage reference for the +120 V supply is produced by a 5651 tube.
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Catalog photo
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Schematic
