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The '''Tektronix Type 290 Transistor Switching Time Tester''' is a test fixture | The '''Tektronix Type 290 Transistor Switching Time Tester''' is a test fixture | ||
[[introduced in 1962]] with built-in power supplies for the collector current and the base bias. | [[introduced in 1962]] with built-in power supplies for the collector current and the base bias. | ||
It handles NPN and PNP transistors. | It handles NPN and PNP transistors. | ||
The 290 has two modes, low-voltage (collector voltage 0 to 30 V) and high-voltage | |||
(collector voltage from 0 to 100 V). The fixture's input and output are 50 Ω | |||
GR-874 connectors, so it can be used with standard cables and test | |||
instruments while maintaining good signal integrity. The instrument itself is rated | instruments while maintaining good signal integrity. The instrument itself is rated | ||
to have a risetime of under | to have a risetime of under 1 ns. | ||
* [http://w140.com/tek_290.pdf Tektronix 290 Manual (PDF)] | * [http://w140.com/tek_290.pdf Tektronix 290 Manual (PDF)] | ||
Revision as of 13:17, 9 March 2018
The Tektronix Type 290 Transistor Switching Time Tester is a test fixture introduced in 1962 with built-in power supplies for the collector current and the base bias. It handles NPN and PNP transistors.
The 290 has two modes, low-voltage (collector voltage 0 to 30 V) and high-voltage (collector voltage from 0 to 100 V). The fixture's input and output are 50 Ω GR-874 connectors, so it can be used with standard cables and test instruments while maintaining good signal integrity. The instrument itself is rated to have a risetime of under 1 ns.
