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The Tektronix Type 565 is a dual-beam scope made by Tektronix that takes two 2-series or 3-series vertical plug-ins. Two trigger and sweep modules are contained in the mainframe. The 565 is similar to the 556, but with much less bandwidth and without tunnel diode triggering. A rackmount version, the RM565, was also produced. | The Tektronix Type 565 is a dual-beam scope made by Tektronix that takes two 2-series or 3-series vertical plug-ins. Two trigger and sweep modules are contained in the mainframe. The 565 is similar to the 556, but with much less bandwidth and without tunnel diode triggering. A rackmount version, the RM565, was also produced. | ||
The triggering signal passes through a 6DJ8-based differential amplifier and then is discriminated by a | |||
6DJ8-based Schmitt trigger. As is usual for 560-series scopes, the vertical deflection plates of the CRT | |||
are driven directly by the vertical plug-in. Aside from being dual-beam, the 565 is unusual among the | |||
other 560-series models in the fact that it has built-in trigger, sweep and horizontal amplifier circuits. | |||