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422: Difference between revisions
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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 | ||
end. The 422 uses tunnel diodes from triggering. The post-deflection acceleration voltage | end. The 422 uses tunnel diodes from triggering. The post-deflection acceleration voltage | ||
is 4900 Volts. | is 4900 Volts. | ||