The 3S6 unit is a dual channel vertical amplifier plug-in unit designed for operation in the Tektronix Type 568
oscilloscope. The type 3S6 accepts S-series sampling heads attached to cables connected to the rear of the
plug-in. The sampling heads determine the input characteristics of the sampling unit and the availability of
trigger pickoff for internal triggering from Channel A.
The type 3S6 unit will operate with any Tektronix 3T-series sampling unit. It is recommended that it normally
be used with 3T6 Programmable Sampling Sweep. Both the type 3S6 and the type 3T^ can be externally programmed
through a rear panel connector that is accessible through J214 of a type 568 or R568 Oscilloscope.
The 3S6 provides the vertical signal information for amplitude measurements by a Tektronix digital readout
system (type 568-type 230). Decimal and units control of the digital unit readout is also provided by the 3S6
including sampling head defection factor multiplier for sampling heads with sensitivities requiring the numbers
around the type 3S6 Units/Div control to have a decimal shift.