Model 1304 Control Resistor
Model 1305 Control Resistor

Model 1304 control resistors are used with bridges that have a 5 to 1 ratio, such as TSI's 1750 and 1050/1053/1054 anemometers. The Model 1305 control resistors are used with bridges that have a 1 to 1 bridge ratio such as the 1:1 bridge used for high frequency applications of TSI's IFA100 and 1050 anemometers.
 

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Model 10120 Hot Wire/Film Sensor Repair Kit

Includes equipment needed to attach hot wire or cylindrical film sensors designed for gas applications to needle supports. Kit includes soldering iron with spare tips, single-edge razor blades, soldering stand with clip, jeweler’s broach, soft solder (400°F melting point), distilled water, brush, acid flux, and a file. A microscope or magnifier of about 10X to 20X is also recommended.

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Model 10121 Hot Film Replacement Sensors

These are high-quality, alumina-coated hot film sensors (cylindrical elements for air only) for field replacement use. They are furnished in quantities of 10 with mounting instructions.

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Model 10122 Hot Wire Replacement Sensors

These are high-quality, platinum-coated tungsten hot wire sensors for field replacement use, furnished in quantities of 12 on a card. Each sensor is strung across a slot for ease in positioning and mounting. The ends of the wires are plated to isolate the active sensor region.

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Model 10123 Wire for Hot Wire Sensors

This is the same high-quality, platinum-coated tungsten wire used in the Model 10122 but furnished on a spool in a 2-meter length.