3S1: Difference between revisions

Revision as of 01:18, 7 March 2024

Tektronix 3S1
1 GHz sampling plug-in Tektronix 3S1 Compatible with 560-series scopes Produced from 1967 to (?) Manuals Tektronix 3S1 Manual Late 3S1 Schematics Tektronix 3S1 Factory Cal Procedure 1967 Tektronix 3S1 Calibration Outline (OCR) (All manuals in PDF format unless noted otherwise)

Manuals – Specifications – Links – Pictures

The Tektronix 3S1 is a dual-trace sampling plug-in for 560-series scopes.

In many ways, the 3S1 is similar to the 4S1, but more compact.

The 3S1 provides +100 V and −12.2 V for P6032 cathode-follower probes.

Key Specifications

Rise Time	350 ps
Bandwidth	1 GHz (calculated)

Links

Documents Referencing 3S1

Document	Class	Title	Authors	Year	Links
Service Scope 52 Oct 1968.pdf	Article	The State of the Art in Sampling	Al Zimmerman	1968	S-1 • S-2 • S-3 • S-4 • S-50 • S-51 • 285 • 3S1 • 3S2 • 3S5 • 3S6 • 3T2 • 3T5 • 3T6 • 3T77A • 568 • 230

Internals

In contrast to modular sampling plug-ins like the 3S2, the 3S1 has built-in sampling heads. The signal enters through GR-874 connectors on the front panel. Each channel has a resistive trigger pickoff followed by a 55 ns coaxial delay line. Following the delay line is a compensation circuit designed to (partially) undo the pulse degradation caused by the delay line, and also to provide proper termination for low return loss at the input. Next in the main signal path is a four-diode sampling bridge driven by a snap-off diode, D73.

Pictures

front view
left view
right view
top view
bottom view

Components

Some Parts Used in the 3S1

Part	Part Number(s)	Class	Description	Used in
151-0261-00	151-0261-00	Discrete component	dual PNP transistor	AM501 • AM502 • CG5001 • CG551AP • FG501 • FG502 • FG503 • OF150 • OF151 • OF152 • OF235 • OS261 • RM502A • R1140 • R5030 • R5031 • R7912 • 067-0679-00 • 067-0807-00 • 1101 • 1140A • 1141 • 1142 • 1350 • 145 • 1450 • 1480 • 1481 • 1482 • 1485 • 1501 • 1801 • 1900 • 1910 • 1980 • 213 • 26A1 • 26A2 • 2620 • 285 • 3A9 • 3A10 • 3S1 • 3S2 • 3S5 • 3S6 • 432 • 434 • 4501 • 454 • 4601 • 4602 • 4610 • 4612 • 4620 • 4632 • 4634 • 4701 • 475 • 492 • 492A • 492AP • 494 • 494P • 496 • 496P • 5A13N • 5A20N • 5A21N • 5A22N • 5A26 • 5L4N • 502A • 5030 • 5031 • 576 • 690SR • 7A22 • 7A29 • 7B51 • 7B71 • 7J20 • 7L5 • 7S11 • 7S12 • 7912AD

@@ Line 16: / Line 16: @@
 }}
 The '''Tektronix 3S1''' is a dual-trace [[sampling_oscilloscope|sampling]] plug-in for [[560-series scopes]].
-In contrast to modular sampling plug-ins like the [[3S2]], the 3S1 has built-in sampling heads.
-The signal enters through [[GR-874 connector]]s on the front panel.
-Each channel has a resistive trigger pickoff followed by a 55 ns coaxial [[delay line]].
-Following the delay line is a compensation circuit designed to (partially) undo the pulse degradation caused by the delay line, and also to provide proper termination for low return loss at the input.
-Next in the main signal path is a four-diode sampling bridge driven by a [[snap-off diode]], D73.
 In many ways, the 3S1 is similar to the [[4S1]], but more compact.
@@ Line 34: / Line 28: @@
 ==Links==
 {{Documents|Link=3S1}}
+==Internals==
+In contrast to modular sampling plug-ins like the [[3S2]], the 3S1 has built-in sampling heads.
+The signal enters through [[GR-874 connector]]s on the front panel.
+Each channel has a resistive trigger pickoff followed by a 55 ns coaxial [[delay line]].
+Following the delay line is a compensation circuit designed to (partially) undo the pulse degradation caused by the delay line, and also to provide proper termination for low return loss at the input.
+Next in the main signal path is a four-diode sampling bridge driven by a [[snap-off diode]], D73.
 ==Pictures==