568

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Sampling scope Tektronix 568 front, with 3S6 and 3T6 plugins Produced from 1967 to 1987 Manuals Tektronix 568 Manual (DjVu) Tektronix 568 Manual (PDF) "Digital Readout Introduction" in 1968 Catalog (PDF) (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix 568 is a sampling oscilloscope, introduced in 1967, which takes 3S- and 3T-series plug-ins. Although it was intended to be used for sampling, it can also be used with non-sampling plug-ins of the 3A and 3B series.

Like the 561 and 564, the 568 does not contain vertical or horizontal amplifiers. The plug-ins directly drive the deflection plates. The 568 has multi-pin connectors on its rear panel that are routed to multi-pin connectors on the plug-ins. This is to support external control and measurement using, for example, a 230 and 241. The typical cable for connecting the 568 to the 230 is the 012-0119-01.

Two sampling heads can be interfaced directly to the 568 using the 012-0130-00 cable, or multiple sampling heads can be interfaced using an multiplexer such as the 286, 287, or R288.

CRT was the T5032-2-1 (154-0454-00) or T5611-2-1 (154-0613-01).

The 568 was distributed as a self-contained instrument and also as a component of integrated test and measurement systems such as the S-3100. As a part of the test and measurement systems, the 568 was sold at least until 1986.

A modification, 708P, was available for the 568 to give it a head multiplexer instead of a CRT. Head multiplexer is similar with 286

Key Specifications

	— only realtime —
Bandwidth	DC to 15 MHz (with 3A5, may vary with other plug-ins)
Rise time	0.024 μs
	— only sampling —
Bandwidth	DC to 14,5 GHz (with 3S2 and S-4 head, may vary with other plug-ins)
Rise time	25 ps
	— all —
Accelerating Potential	3.5 kV
Screen Area	8 cm × 10 cm
Calibrator	0.5 V , 5 V (p-p) into 1 MΩ, 50mV, 0.5 V (p-p) into 50 Ω, selectable 1 kHz( -50 % / +100%)and 100 kHz (0.05 %, B150629 below 20 kHz)
Screen Area	8 cm × 10 cm
Power Consumption	max 210 W with plug-ins
Line Voltage	100/115/124/200/230/248 V_AC ±10%, selected via primary voltage selector and voltage range selector switches, 48 Hz to 66 Hz.
Thermal Protection	Automatic resetting thermal cutout, in case internal temperature exceeds safe operating level
Construction	Aluminum alloy chassis. Anodized front panel