The quality of the electron beam in electron defraction tube S (1013889) is affected by the resistance between sockets C5 (cathode) and F4 (heating filament) on the tube.

$The quality of the electron beam in electron defraction tube S (1013889) is affected by the resistance between sockets C5 (cathode) and F4 (heating filament) on the tube.$

Replacement Circuit Board for Tube Holder S

Name: Replacement Circuit Board for Tube Holder S
Brand: 3B Scientific
SKU: 005-4008573
Price: 275.89 CAD
Availability: InStock

3B Scientific

SKU 005-4008573

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$275.89

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Description

Replacement Circuit Board for Tube Holder S

Product Overview

The quality of the electron beam in electron defraction tube S (1013889) is affected by the resistance between sockets C5 (cathode) and F4 (heating filament) on the tube. For optimum results, the resistance needs to be 390 kΩ. Tube holder S (1014525) is accordingly designed such that this resistance is present.
Older designs feature a much smaller resistance and need to be modified in order to work with the new S-series electron deflection tube 1013889).
Tube holders affected: U18500, U185001, 1000610