400-series scopes
The Tektronix 400-Series were portable scopes.
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422 − 15 MHz dual channel (1966 — 1975)
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432 − 25 MHz dual channel (1971 — ?)
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434 − 24 MHz dual channel storage (1971 — 1984)
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453 − 50 MHz dual channel (1966 — 1974)
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454 − 150 MHz dual channel (1967 — 1974)
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455 − 150 MHz dual channel (1975 — 1980)
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464 − 100 MHz dual channel storage (1975 — 1985)
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465 − 100 MHz dual channel (1972 — 1983)
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465M − 100 MHz dual channel (1977 — ?)
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466 − 100 MHz dual channel storage (1974 — 1988)
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468 − 10/100 MHz analog/digital dual channel (1980 — 1985)
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475 − 200 MHz (A:250 MHz) dual channel (1972 — 1986)
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485 − 350 MHz dual channel (1972 — 1986)