560-series scopes
The 560 series scopes which were introduced with the 560 and 561 in 1961 were tube scopes that began to introduce some solid state circuitry. They use 560-series plug-ins (exception: 560 and 561 only takes 2-series because of weak power supply).
560-series mainframes contain neither delay lines nor amplifier stages, requiring the plug-ins to drive the CRT deflection plates directly, at the disadvantage of needing to calibrate gain or sweep when swapping plug-ins.
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560 - Basic mainframe (1961)
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561 (1961)
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561A (1962)
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561B - Solid state scope (1969)
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564 - Storage scope (1962-1968?)
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565 - Dual-beam scope, two plug-ins; built-in trigger, sweep, and horizontal amplifier (1963)
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568 - Sampling scope (1967)
