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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 has two modes: low-voltage and high-voltage. | It handles NPN and PNP transistors. It has two modes: low-voltage and high-voltage. | ||
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Image:Tek 290.gif | Image:Tek 290.gif | ||
</gallery> | </gallery> | ||
[[Category:Accessories]] | |||
[[Category:Introduced in 1962]] | |||
Revision as of 03:39, 31 August 2014
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. It has two modes: low-voltage and high-voltage. In the low-voltage mode, Vcc can be adjusted from 0V to 30V. In the high-voltage mode, Vcc goes from 0V to 100V. The fixture provides a 50-ohm input and a 50-ohm output with 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 nanosecond.
