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{{Oscilloscope Sidebar |
{{Oscilloscope Sidebar
title=Tektronix 565 |
|manufacturer=Tektronix
image=Rm 565 cal signal.jpg |
|series=560-series scopes
caption=Tektronix RM 565 |
|model=565
introduced=1962 |
|summary=10 MHz dual-beam scope
discontinued=(?) |
|image=Rm 565 cal signal.jpg
summary=10 MHz dual-beam scope |
|caption=Tektronix RM 565
manuals=
|introduced=1962
* [http://bama.edebris.com/download/tek/565/565.djvu Tektronix 565 Manual (DjVu)]
|discontinued=1974
* [http://w140.com/tek_565.pdf Tektronix 565 Manual (PDF)]
|manuals=
* [[Media:070-269.pdf|Tektronix 565 Manual]]
* [[Media:Tek 565 preliminary 070-269.pdf|Tektronix 565 Preliminary Manual]]
* [[Media:Tek 565 irb.pdf|Tektronix 565 Instrument Reference Book]] (OCR)
* [[Media:Tek 565 fcp.pdf|Tektronix 564 Factory Calibration Procedure]]
}}
}}
The '''Tektronix Type 565''' is a [[dual-beam scopes|dual-beam scope]] that takes two [[560-series plug-ins|560-series vertical plug-ins]].
The '''Tektronix Type 565''' is a [[dual-beam scopes|dual-beam scope]] that takes two [[560-series plug-ins|560-series vertical plug-ins]].
It was [[introduced in 1963]].
It was [[introduced in 1962]].
The 1974 catalog was the last one that included the 565.
The 1974 catalog was the last one that included the 565.


A rackmount version, the RM565, was also produced. Aside from being dual-beam, the 565 is unusual among the  
A rackmount version, the RM565, was also produced. Aside from being dual-beam, the 565 is unusual among the other [[560-series scopes]] in the fact that it (the mainframe) has built-in trigger, sweep, and horizontal amplifier circuits.
other [[560-series scopes]] in the fact that it (the mainframe) has built-in trigger, sweep, and horizontal amplifier circuits.


==Specifications==
{{BeginSpecs}}
The vertical characteristics are mostly determined by the vertical plug-ins. 
{{Spec|Bandwidth|up to 10 MHz  determined by vertical plug-ins}}
 
{{Spec|Sweep|1 μs/div to 5 s/Div, 1−2−5, ×10 magnifier, and variable }}
The fastest sweep is 1 μs/div (100 ns/div with 10x horizontal magnification enabled).  The sweep delay can be adjusted over a range from 10 μs to 50 seconds.
{{Spec|Sweep delay| 10 μs to 50 seconds}}
 
{{Spec|Power|600 W max. including plug-ins}}
Power consumption, including plug-ins, is about 600 watts, maximum.
{{Spec|Calibrator|1 kHz square wave, 1 mV to 100 V in decade steps}}
 
{{Spec|CRT| [[T5650]], cathode at −3.9 kV, no post-deflection acceleration}}
The internal calibrator produces a 1 kHz square wave with amplitude selectable in decade steps from 1 mV to 100 V.
{{EndSpecs}}


==Circuits==
==Circuits==
The 565 uses the [[T5650]] CRT.
CRT acceleration voltage is produced by a transformer driving a single [[1X2]] rectifier tube.


===Vertical Signal Path===
===Vertical Signal Path===
Line 34: Line 37:
The left plug-in bay is for the lower beam and the right plug-in bay is for the upper beam.
The left plug-in bay is for the lower beam and the right plug-in bay is for the upper beam.


A 0.7—3 pF trimmer capacitor is connected immediately behind each of the plug-in connectors, and allows
A 0.7−3 pF trimmer capacitor is connected immediately behind each of the plug-in connectors, and allows
for the mainframe to be calibrated so that plug-ins can be interchanged without requiring the
for the mainframe to be calibrated so that plug-ins can be interchanged without requiring the
high-frequency compensation of the system to be readjusted.
high-frequency compensation of the system to be readjusted.
Line 42: Line 45:


=== Trigger and Sweep ===
=== Trigger and Sweep ===
The triggering signal comes from pin 11 on the plug-ins, is amplified by a [[12AT7]]-based cathode follower,  
The 565 is the only 560-series mainframe that has built-in trigger, timebase, and horizontal amplifier circuitry.
and sent to "TRIGGER" switches.  From there, the trigger signal is sent through a [[6DJ8]]-based differential amplifier  
In all other [[560-series scopes]], those functions are performed by the horizontal plug-in.
and then is discriminated by a [[6DJ8]]-based Schmitt trigger.
 
The triggering signal comes from pin 11 on the plug-ins, is amplified by a [[12AT7]]-based cathode follower, and sent to "TRIGGER" switches.  From there, the trigger signal is sent through a [[6DJ8]]-based differential amplifier, and then is discriminated by a [[6DJ8]]-based Schmitt trigger.
    
    
The 565 is also unusual in that it employs a [[tunnel diodes|tunnel diode]] (D845, a [[TD4]], which is equivalent to the [[1N3718]]) in the trace intensification circuit.   
The 565 is also unusual in that it employs a [[tunnel diodes|tunnel diode]]
(D845, a [[TD4]], which is equivalent to the [[1N3718]]) in the trace intensification circuit.   
The tunnel diode forms a bistable multivibrator: kick it one way and it turns on and stays on,  
The tunnel diode forms a bistable multivibrator: kick it one way and it turns on and stays on,  
kick it the other way and it turns off and stays off. The tunnel diode is DC-coupled to the base-emitter junction of Q843,  
kick it the other way and it turns off and stays off.
which is a 2N404 germanium PNP transistor. Because the tunnel diode and transistor are DC-coupled, the transistor needs
The tunnel diode is DC-coupled to the base-emitter junction of Q843,  
to be germanium. This is one of the rare cases when a failed germanium transistor cannot be replaced with a silicon part.
which is a 2N404 germanium PNP transistor.
Contrast this with the timebase A trigger of the [[585|585A]], which uses a tunnel diode AC-coupled to a transistor, which
Because the tunnel diode and transistor are DC-coupled, the transistor needs to be germanium.
makes the forward voltage of the transistor's base-emitter junction irrelevant.
This is one of the rare cases when a failed germanium transistor cannot be replaced with a silicon part.
Contrast this with the timebase A trigger of the [[585|585A]], which uses a tunnel diode AC-coupled to a transistor,
which makes the forward voltage of the transistor's base-emitter junction irrelevant.


=== Calibrator ===
=== Calibrator ===
Line 58: Line 65:
The calibrator is an astable multivibrator formed by one half of a [[12AT7]] and a [[6AU6]].
The calibrator is an astable multivibrator formed by one half of a [[12AT7]] and a [[6AU6]].
The other half of the 12AT7 serves as the output cathode follower for the calibrator.
The other half of the 12AT7 serves as the output cathode follower for the calibrator.
=== Auxiliary Power Jack ===
The 565 has an [[Amphenol 165 series connectors|Amphenol 165 series connector]] (J780) on the rear panel, which allows the 565 to provide power to external devices.
The pinout and specs are shown below.


== Comparison with the [[556]] ==
== Comparison with the [[556]] ==
The 565 appears similar to the [[556]], but is different in many ways.
The 565 appears similar to the [[556]], but is different in many ways.
The 556 uses tunnel diodes for triggering, while the 565 uses tubes.
The 556 uses tunnel diodes for triggering, while the 565 uses tubes.
The 556 uses [[letter-series and 1-series plug-ins]] while the 565 uses 560-series plug-ins.
The 556 uses [[letter-series and 1-series plug-ins]] while the 565 uses 560-series plug-ins.
Moreover, the bandwidth of the 556 is specified as 50 MHz, while the bandwidth of the 565 is specified as 10 MHz.
Moreover, the bandwidth of the 556 is specified as 50 MHz, while the bandwidth of the 565 is specified as 10 MHz.
Subjectively, the trace of the 565 is very sharp, sharper than the trace of the 556.
Subjectively, the trace of the 565 is very sharp, sharper than the trace of the 556.


== Mechanical ==
== Mechanical ==
Benchtop (565) and rackmount versions (RM565) were made. The benchtop version has the following dimensions:
Benchtop (565) and rackmount versions (RM565) were made.
The benchtop version has the following dimensions:
* Width: 17 inches
* Width: 17 inches
* Height: 13.5 inches
* Height: 13.5 inches
Line 77: Line 89:
==Pictures==
==Pictures==
<gallery>
<gallery>
File:Rm565_1.jpg|Front from RM565
Rm565_1.jpg|Front from RM565
File:Rm565_2.jpg
Rm565_2.jpg
File:IMG 1213.JPG| Open 565
IMG 1213.JPG| Open 565
File:Wellenkino 565.jpg
Wellenkino 565.jpg
File:RM565_P7.jpg|RM565 with P7 CRT
RM565_P7.jpg|RM565 with P7 CRT
File:Tek 565 block.png|Block Diagram
Tek 565 block.png|Block Diagram
File:Tek 565 timebase a timing sw.png|Timebase 'A' Timing Switch
Tek 565 timebase a timing sw.png|Timebase 'A' Timing Switch
File:Tek 565 timebase a trig.png|Timebase 'A' Trigger
Tek 565 timebase a trig.png|Timebase 'A' Trigger
File:Tek 565 timebase a gen.png|Timebase 'A' Generator
Tek 565 timebase a gen.png|Timebase 'A' Generator
File:Tek 565 delay pickoff.png|Delay Pickoff
Tek 565 delay pickoff.png|Delay Pickoff
File:Tek 565 timebase b trigger.png|Timebase 'B' Trigger
Tek 565 timebase b trigger.png|Timebase 'B' Trigger
File:Tek 565 timebase b generator.png|Timebase 'B' Generator
Tek 565 timebase b generator.png|Timebase 'B' Generator
File:Tek 565 timebase b timing sw.png|Timebase 'B' Timing Switch
Tek 565 timebase b timing sw.png|Timebase 'B' Timing Switch
File:Tek 565 horiz display switching.png|Horizontal Display Switching
Tek 565 horiz display switching.png|Horizontal Display Switching
File:Tek 565 lower horiz amp.png|Lower Horizontal Amp
Tek 565 lower horiz amp.png|Lower Horizontal Amp
File:Tek 565 crt circuit.png|CRT Circuit
Tek 565 crt circuit.png|CRT Circuit
File:Tek 565 plug-in connectors.png|Plug-in Connectors
Tek 565 plug-in connectors.png|Plug-in Connectors
File:Tek 565 heater and power supply.png|Heater Wiring and Power Supply
Tek 565 heater and power supply.png|Heater Wiring and Power Supply
File:Tek 565 amplitude calibrator.png|Amplitude Calibrator
Tek 565 amplitude calibrator.png|Amplitude Calibrator
File:Rm 565 front bottom internal.jpg
Rm 565 front bottom internal.jpg
File:Rm 565 bottom internal.jpg
Rm 565 bottom internal.jpg
File:Rm 565 cal signal.jpg
Rm 565 cal signal.jpg
Tek565-crop.jpg
Tek565-crop.jpg
Tek rm565 gray1.jpg|Gray RM565
Tek rm565 gray1.jpg|Gray RM565
Line 109: Line 121:
Tek rm565 gray8.jpg|Gray RM565
Tek rm565 gray8.jpg|Gray RM565
Tek rm565 gray9.jpg|Gray RM565
Tek rm565 gray9.jpg|Gray RM565
Tek 565 j780.jpg|J780 on rear panel
Tek 565 j780 specs.png|J780 Specs
Tek 565 j780 pinout.png|J780 Pinout
Tek rm565 top inside.jpg
Tek rm565 hvps.jpg
Tek rm565 hv rectifier.jpg
Tek rm565 intensifier circuit.jpg
Rm565 two trace2.jpg
Tek rm565 top internal.jpg|top internal
Tek rm565 right cover off.jpg|LV power supply tubes on the bottom, HV on the top, fan in the rear
Tek rm565 bottom internal.jpg|bottom internal
Tek rm565 rear.jpg|rear
</gallery>
</gallery>
==Components==
{{Parts|565}}


[[Category:560 series scopes]]
[[Category:560 series scopes]]
[[Category:Dual beam scopes]]
[[Category:Dual beam scopes]]


[[Category:Introduced in 1963]]
[[Category:Introduced in 1962]]

Latest revision as of 08:17, 10 March 2024

Tektronix 565
10 MHz dual-beam scope
Tektronix RM 565

Produced from 1962 to 1974

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix Type 565 is a dual-beam scope that takes two 560-series vertical plug-ins. It was introduced in 1962. The 1974 catalog was the last one that included the 565.

A rackmount version, the RM565, was also produced. Aside from being dual-beam, the 565 is unusual among the other 560-series scopes in the fact that it (the mainframe) has built-in trigger, sweep, and horizontal amplifier circuits.

Key Specifications

Bandwidth up to 10 MHz determined by vertical plug-ins
Sweep 1 μs/div to 5 s/Div, 1−2−5, ×10 magnifier, and variable
Sweep delay 10 μs to 50 seconds
Power 600 W max. including plug-ins
Calibrator 1 kHz square wave, 1 mV to 100 V in decade steps
CRT T5650, cathode at −3.9 kV, no post-deflection acceleration

Circuits

CRT acceleration voltage is produced by a transformer driving a single 1X2 rectifier tube.

Vertical Signal Path

As is usual for 560-series scopes, the vertical deflection plates of the CRT are driven directly, differentially, by pins 17 and 21 of the vertical plug-in. The left plug-in bay is for the lower beam and the right plug-in bay is for the upper beam.

A 0.7−3 pF trimmer capacitor is connected immediately behind each of the plug-in connectors, and allows for the mainframe to be calibrated so that plug-ins can be interchanged without requiring the high-frequency compensation of the system to be readjusted. The capacitance seen by the plug-in driving the scope should be 14.3 pF for either beam.

There is no trigger pickoff in the vertical signal path of the 565. That function is performed by the plug-ins.

Trigger and Sweep

The 565 is the only 560-series mainframe that has built-in trigger, timebase, and horizontal amplifier circuitry. In all other 560-series scopes, those functions are performed by the horizontal plug-in.

The triggering signal comes from pin 11 on the plug-ins, is amplified by a 12AT7-based cathode follower, and sent to "TRIGGER" switches. From there, the trigger signal is sent through a 6DJ8-based differential amplifier, and then is discriminated by a 6DJ8-based Schmitt trigger.

The 565 is also unusual in that it employs a tunnel diode (D845, a TD4, which is equivalent to the 1N3718) in the trace intensification circuit. The tunnel diode forms a bistable multivibrator: kick it one way and it turns on and stays on, kick it the other way and it turns off and stays off. The tunnel diode is DC-coupled to the base-emitter junction of Q843, which is a 2N404 germanium PNP transistor. Because the tunnel diode and transistor are DC-coupled, the transistor needs to be germanium. This is one of the rare cases when a failed germanium transistor cannot be replaced with a silicon part. Contrast this with the timebase A trigger of the 585A, which uses a tunnel diode AC-coupled to a transistor, which makes the forward voltage of the transistor's base-emitter junction irrelevant.

Calibrator

The calibrator is an astable multivibrator formed by one half of a 12AT7 and a 6AU6. The other half of the 12AT7 serves as the output cathode follower for the calibrator.

Auxiliary Power Jack

The 565 has an Amphenol 165 series connector (J780) on the rear panel, which allows the 565 to provide power to external devices. The pinout and specs are shown below.

Comparison with the 556

The 565 appears similar to the 556, but is different in many ways. The 556 uses tunnel diodes for triggering, while the 565 uses tubes. The 556 uses letter-series and 1-series plug-ins while the 565 uses 560-series plug-ins. Moreover, the bandwidth of the 556 is specified as 50 MHz, while the bandwidth of the 565 is specified as 10 MHz. Subjectively, the trace of the 565 is very sharp, sharper than the trace of the 556.

Mechanical

Benchtop (565) and rackmount versions (RM565) were made. The benchtop version has the following dimensions:

  • Width: 17 inches
  • Height: 13.5 inches
  • Depth: 23.375 inches
  • Weight: 67 pounds

The RM565 weighs 80 pounds.

Pictures

  • Front from RM565

    Front from RM565

  • Open 565

    Open 565

  • RM565 with P7 CRT

    RM565 with P7 CRT

  • Block Diagram

    Block Diagram

  • Timebase 'A' Timing Switch

    Timebase 'A' Timing Switch

  • Timebase 'A' Trigger

    Timebase 'A' Trigger

  • Timebase 'A' Generator

    Timebase 'A' Generator

  • Delay Pickoff

    Delay Pickoff

  • Timebase 'B' Trigger

    Timebase 'B' Trigger

  • Timebase 'B' Generator

    Timebase 'B' Generator

  • Timebase 'B' Timing Switch

    Timebase 'B' Timing Switch

  • Horizontal Display Switching

    Horizontal Display Switching

  • Lower Horizontal Amp

    Lower Horizontal Amp

  • CRT Circuit

    CRT Circuit

  • Plug-in Connectors

    Plug-in Connectors

  • Heater Wiring and Power Supply

    Heater Wiring and Power Supply

  • Amplitude Calibrator

    Amplitude Calibrator

  • Gray RM565

    Gray RM565

  • Gray RM565

    Gray RM565

  • Gray RM565

    Gray RM565

  • Gray RM565

    Gray RM565

  • Gray RM565

    Gray RM565

  • Gray RM565

    Gray RM565

  • Gray RM565

    Gray RM565

  • Gray RM565

    Gray RM565

  • Gray RM565

    Gray RM565

  • J780 on rear panel

    J780 on rear panel

  • J780 Specs

    J780 Specs

  • J780 Pinout

    J780 Pinout

  • top internal

    top internal

  • LV power supply tubes on the bottom, HV on the top, fan in the rear

    LV power supply tubes on the bottom, HV on the top, fan in the rear

  • bottom internal

    bottom internal

  • rear

    rear

Components

Some Parts Used in the 565

Part Part Number(s) Class Description Used in
0G3 154-0291-00 Gas Discharge Tube (Voltage regulator) 85 V voltage reference 132 • 506 • 547 • 560 • 561 • 561A • 561S • 564 • 565 • 567 • 661 • TU-4 • Z • Keithley 610
120-289 120-289 Discrete component transformer 565
12AT7 154-0039-00 Vacuum Tube (Dual Triode) dual high-gain triode 161 • 180 • 310 • 310A • 315 • 316 • 360 • 502 • 502A • 511A • 512 • 513 • 513D • 514 • 514AD • 514D • 516 • 524 • 529 • RM529 • 544 • 546 • 547 • 556 • 565 • 570 • 3A2 • 75 • 3A75 • 1M1 • A • B • C • G • H • K • L • ML • M • N • K • R • S • Z • Keithley 610B
1X2 154-0005-00 Vacuum Tube (Diode) high-voltage rectifier 420 • 507 • 565
6080 154-0056-00 • 154-0315-00 Vacuum Tube (Dual Triode) dual power triode 132 • 160 • 316 • 317 • 516 • 535 • 535A • RM35A • 541 • 541A • 535 • 536 • 545 • 545A • 545B • 546 • 547 • 549 • 565 • 567 • 575 • 581 • 581A • 585 • 585A
6AL5 154-016 • 154-0016-00 • 154-0038-00 Vacuum Tube (Dual Diode) high-perveance dual diode 163 • 181 • 190 • 1M1 • 310 • 310A • 315 • 316 • 317 • 3B1 • 3B1S • 3B2 • 3B3 • 3B5 • 502 • 502A • 503 • 511 • 511A • 512 • 516 • 517 • 517A • 524 • 526 • 535 • 535A • 545 • 545A • 549 • 551 • 565 • 570 • 581 • 581A • 585 • 585A • C • T • Telequipment D52 • Telequipment D56 • Telequipment S52
6AN8 154-078 • 154-0078-00 Vacuum Tube (Triode/Pentode) triode-pentode combo 310 • 310A • 316 • 317 • 360 • 502 • 502A • 516 • 517 • 517A • 526 • 565 • 570 • 575 • N
6AU6 154-0022-00 • 157-0073-00 • 157-0059-00 • 154-0284-00 Vacuum Tube (Pentode) RF pentode 107 • 160 • 181 • 190 • 60 • 2A60 • 72 • 3A72 • 3C66 • 310 • 310A • 316 • 317 • 360 • 502 • 502A • 506 • 511 • 511A • 512 • 513 • 516 • 517 • 517A • 524 • 526 • 529 • RM529 • 531 • 531A • 535 • 536 • 545 • 545A • 546 • 547 • 549 • 555 • 561 • 561A • 561S • 564 • 565 • 567 • 570 • 575 • 581 • 581A • 585 • 585A • 80 • C • CA • Q
6BC7 154-0232-00 Vacuum Tube (Diode) triple diode 503 • 504 • 565 • 67 • 2B67
6BJ7 154-0453-00 Vacuum Tube (Diode) triple diode 503 • 526 • 565
6BL8 154-0278-00 Vacuum Tube (Triode/Pentode) triode-pentode combo 67 • 2B67 • 3B1 • 3B1S • 3B2 • 3B3 • 3B4 • 503 • 504 • 506 • 516 • 549 • 561 • 561A • 561S • 564 • 565 • 567 • Telequipment D52 • Telequipment D56 • Telequipment S31 • Telequipment S32 • Telequipment S32A • Telequipment S51 • Telequipment S52
6CW4 154-0323-00 Vacuum Tube (Triode) Nuvistor triode 1A7 • 3A8 • 3B2 • 3S76 • 6R1 • 565 • S-311
6CZ5 154-0167-00 Vacuum Tube (Pentode) power pentode 317 • 502 • 506 • 526 • 555 • 561 • 561A • 561S • 564 • 565 • 567
6DJ8 154-0187-00 • 154-0305-00 Vacuum Tube (Dual Triode) dual triode 067-506 • 111 • 132 • 161 • 310A • 316 • 317 • 502 • 502A • 503 • 504 • 506 • 515 • 516 • 519 • 526 • 529 • RM529 • 533 • 535 • 536 • 543 • 544 • 545 • 545A • 545B • 546 • 547 • 549 • 555 • 556 • 561A • 561S • 564 • 565 • 567 • 581 • 581A • 585 • 585A • 661 • 1A4 • 1S1 • 60 • 2A60 • 63 • 2A63 • 67 • 2B67 • 3A1 • 3A1S • 3A2 • 3A3 • 3A6 • 3A7 • 72 • 3A72 • 75 • 3A75 • 4S2 • 51 • 3B1 • 3B1S • 3B2 • 3B3 • 3B4 • 3M1 • 3S76 • 3T77 • 3T77A • 9A1 • 9A2 • 1121 • 80 • 81 • 82 • 86 • B • O • W • Z • Telequipment D56 • Telequipment S32A • Telequipment D52 • S-311 • Telequipment TD51 • Telequipment S52 • Telequipment S51 • Telequipment Type A • TU-4
7233 154-307 • 154-0307-00 Vacuum Tube (Triode) low-mu triode 132 • 506 • 561 • 561A • 561S • 564 • 565
RT5204 151-0058-00 Discrete component Silicon NPN transistor 565 • RM565 • Z • 2A61 • 3B1 • 3B3 • 3S76 • 3T77
STD916 152-0098-00 Discrete component 10 mA, 90 pF tunnel diode 556 • 565 • RM565 • 661
T5650 154-0357-00 • 154-0358-00 • 154-0359-00 • 154-0360-00 • 154-0368-00 • 154-0426-00 • 154-0439-00 • 154-0440-00 • 154-0441-00 • 154-0477-00 • 154-0477-01 • 154-0477-02 • 154-0477-03 CRT dual-beam CRT 565
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