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422: Difference between revisions
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image=Tek 422 front.jpg | | image=Tek 422 front.jpg | | ||
caption=Tektronix 422 front | | caption=Tektronix 422 front | | ||
introduced=(?) | | |||
discontinued=(?) | | |||
manuals= | manuals= | ||
* [http://w140.com/tek_422.pdf Tektronix 422 Manual (PDF)] | * [http://w140.com/tek_422.pdf Tektronix 422 Manual (PDF)] | ||
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* [http://w140.com/tek_422_product_reference_book.pdf Tektronix 422 Product Reference Book (PDF)] | * [http://w140.com/tek_422_product_reference_book.pdf Tektronix 422 Product Reference Book (PDF)] | ||
}} | }} | ||
The Tektronix Type 422 is a 15 MHz portable dual-trace oscilloscope. It was available with | The '''Tektronix Type 422''' is a 15 MHz portable dual-trace oscilloscope. It was available with | ||
an optional battery back for operation without mains power. Early versions use an | an optional battery back for operation without mains power. Early versions use an | ||
[[8056]] Nuvistor tube for the front-end cathode follower. Later versions use a FET front | [[8056]] Nuvistor tube for the front-end cathode follower. Later versions use a FET front | ||