581: Difference between revisions
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{{Oscilloscope Sidebar | |||
|manufacturer=Tektronix | |||
The | |series=580-series scopes | ||
|model=581 | |||
|image=581_old_1.JPG | |||
|caption=Tektronix 581 (early model) | |||
|introduced=1959 | |||
|discontinued=1972 | |||
|summary=100 (95) MHz oscilloscope | |||
|designers=John Gates; | |||
|manuals= | |||
* [[Media:070-170.pdf|Tektronix 581 Manual]] | |||
* [[Media:070-390.pdf|Tektronix 581A Manual]] (OCR) | |||
* [[Media:070-426.pdf|Tektronix 581A Manual 070-426]] needed | |||
<small> | |||
* Factory Calibration Procedure: [[Media:Tek 581a fcp dec 1968.pdf|Dec 1968]] / [[Media:Tek 581a fcp march 1967.pdf|March 1967]] | |||
* [[Media:Service Scope 39 Aug 1966.pdf|580 series gain adjustment procedure, in Service Scope 39, Aug 1966]] | |||
}} | |||
The '''Tektronix 581''' is a 100 MHz tube scope [[introduced in 1959]] as a single time base version of the [[585]]. | |||
Like all [[580-series_scopes|580-series scopes]], it uses [[580-series_plug-ins|580-series plug-ins]]. | |||
The 58x series were the first Tektronix scopes to use [[distributed deflection plates]] and the last to use [[distributed amplifier]]s for vertical deflection. | |||
At 100 MHz (down-rated to 95 MHz in 1962 and 85 MHz for the 581A) with the [[80|Type 80 plug-in]] and up to 85 MHz with the dual-channel [[82|Type 82]], | |||
they were the highest-speed general purpose scopes of Tek's tube scope era (the 1 GHz [[519]] was specialized with no vertical amplifier). | |||
The vertical signal path of the 581 is the same as that of the 585. It uses the [[T581]] CRT. | |||
Type 581 scopes with serial numbers up to 510 use an all-tube trigger circuit. | |||
Starting at serial number 511, the 581 uses [[tunnel diodes|tunnel diode]] triggering. | |||
A Type 581A was introduced in 1963, and it is specified to have a bandwidth of 85 MHz instead of 100 MHz. | |||
The somewhat relaxed bandwidth specification improved CRT production yield which had been a problem when the scope | |||
was specified to 100 MHz. | |||
{{BeginSpecs}} | |||
{{Spec | Rise time | 3.5 ns with [[80 | Type 80]] plugin and [[P80|P80 probe]] }} | |||
{{Spec | Timebase | 50 ns/Div to 2 s/Div, 1−2−5, variable ×2.5, magnifier ×5, single sweep; X input }} | |||
{{Spec | CRT | [[T581]], distributed vertical deflection plates, 10 kV acceleration }} | |||
{{Spec | Outputs | A Sawtooth, A Gate, B Gate, Calibrator (0.2 mV to 100 V<sub>p-p</sub>, 1−2−5) }} | |||
{{EndSpecs}} | |||
==Pictures== | |||
===581=== | |||
<gallery> | |||
581_old_1.JPG | early 581 | |||
581_old_2.JPG | wrinkle and chrome from early 581 | |||
581_triggermods.JPG | TD trigger instead of 6DJ8 trigger | |||
581_selenium.JPG | Selenium rectifier | |||
</gallery> | |||
===581A=== | |||
<gallery> | <gallery> | ||
Tek 581 1.jpg | 581A | |||
Tek 581 2.jpg | | |||
Tek 581 3.jpg | | |||
Tek 581 5.jpg | | |||
</gallery> | </gallery> | ||
===Schematics=== | |||
<gallery> | |||
Tek 581 early trig.png | early model 581 trigger using tubes | |||
Tek 581 late trig.png | late model 581 trigger using tunnel diode | |||
Tek 581 vertical output amp.png | 581 vertical output amp ([[distributed amplifier]]) driving CRT | |||
</gallery> | |||
==Components== | |||
{{Parts|581}} | |||
{{Parts|581A}} | |||
{{Plugins|580-series scopes}} | |||
[[Category:580 series scopes]] |
Revision as of 03:25, 16 December 2023
The Tektronix 581 is a 100 MHz tube scope introduced in 1959 as a single time base version of the 585. Like all 580-series scopes, it uses 580-series plug-ins.
The 58x series were the first Tektronix scopes to use distributed deflection plates and the last to use distributed amplifiers for vertical deflection. At 100 MHz (down-rated to 95 MHz in 1962 and 85 MHz for the 581A) with the Type 80 plug-in and up to 85 MHz with the dual-channel Type 82, they were the highest-speed general purpose scopes of Tek's tube scope era (the 1 GHz 519 was specialized with no vertical amplifier).
The vertical signal path of the 581 is the same as that of the 585. It uses the T581 CRT. Type 581 scopes with serial numbers up to 510 use an all-tube trigger circuit. Starting at serial number 511, the 581 uses tunnel diode triggering.
A Type 581A was introduced in 1963, and it is specified to have a bandwidth of 85 MHz instead of 100 MHz. The somewhat relaxed bandwidth specification improved CRT production yield which had been a problem when the scope was specified to 100 MHz.
Key Specifications
Rise time | 3.5 ns with Type 80 plugin and P80 probe |
---|---|
Timebase | 50 ns/Div to 2 s/Div, 1−2−5, variable ×2.5, magnifier ×5, single sweep; X input |
CRT | T581, distributed vertical deflection plates, 10 kV acceleration |
Outputs | A Sawtooth, A Gate, B Gate, Calibrator (0.2 mV to 100 Vp-p, 1−2−5) |
Pictures
581
-
early 581
-
wrinkle and chrome from early 581
-
TD trigger instead of 6DJ8 trigger
-
Selenium rectifier
581A
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581A
-
-
-
Schematics
-
early model 581 trigger using tubes
-
late model 581 trigger using tunnel diode
-
581 vertical output amp (distributed amplifier) driving CRT
Components
Some Parts Used in the 581
Part | Part Number(s) | Class | Description | Used in |
---|---|---|---|---|
120-0141-00 | 120-0141-00 | Discrete component | power transformer | 581 • 581A • 585 • 585A |
12AU6 | 154-0040-00 | Vacuum Tube (Pentode) | RF pentode | 81 • 112 • 1L10 • 1L20 • 1L60 • 3L10 • 512 • 556 • 575 • 545 • 547 • 549 • 581 • 585 • A • B • C • G • K • H • L • ML • M • N • O • R • S • Z |
12AU7 | 154-041 • 154-0041-00 • 154-0287-00 | Vacuum Tube (Dual Triode) | dual medium-μ triode | 104 • 104A • 122 • 160 • 161 • 162 • 181 • 190 • 310 • 310A • 316 • 317 • 3C66 • 502 • 502A • 507 • 511A • 512 • 516 • 517 • 517A • 524 • 526 • 535 • 536 • 545 • 545A • 545B • 547 • 549 • 555 • 561 • 564 • 570 • 575 • 581 • 581A • 585 • 585A • C • D • E • N • Q • Hickok 1825 |
12AX7 | 154-043 • 154-0043-00 | Vacuum Tube (Dual Triode) | dual triode | 3C66 • 513 • 524 • 531 • 531A • 535 • 536 • 545 • 545A • 545B • 546 • 547 • 549 • 555 • 570 • 581 • 581A • 585 • 585A • E • Q • Hickok 1825 |
12B4 | 154-044 • 154-0044-00 | Vacuum Tube (Triode) | power triode | 126 • 310 • 310A • 316 • 317 • 502 • 502A • 524 • 526 • 541 • 541A • 535 • 535A • 545 • 545A • 546 • 547 • 570 • 549 • 551 • 555 • 513 • 581 • 581A • 585 • 585A |
18NO30 | Discrete component | 18 V, 30-second delay relay | 581 • 585 | |
5642 | 154-0051-00 • 154-0079-00 | Vacuum Tube (Diode) | directly-heated high-voltage rectifier | 310 • 310A • 316 • 317 • 360 • 453 • 502 • 502A • 503 • 504 • 506 • 513 • 515 • 516 • 524 • 529 • RM529 • 533 • 533A • 535 • 536 • 543 • 543A • 543B • 545 • 545A • 545B • 547 • 551 • 555 • 556 • 560 • 561 • 561A • 561S • 564 • 567 • 570 • 575 • 581 • 581A • 585 • 585A • 647 • 647A |
5651 | 154-052 • 154-0052-00 • 154-0288-00 | Gas Discharge Tube (Voltage regulator) | 87 V voltage reference | 128 • 160 • 310 • 310A • 502 • 503 • 504 • 511A • 512 • 516 • 517 • 524 • 526 • 531 • 531A • 535 • 536 • 541 • 541A • 543 • 543A • 543B • 545 • 545A • 545B • 570 • 549 • 581 • 581A • 585 • 585A |
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 |
6939 | Vacuum Tube (Dual Tetrode) | dual tetrode | 581 • 585 | |
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 |
6AU5 | 154-021 • 154-0021-00 | Vacuum Tube (Pentode) | 10 W beam power pentode | 507 • 513 • 516 • 517 • 517A • 531 • 535 • 541 • 535 • 545 • 547 • 581 • 581A • 585 • 585A |
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 |
6CL6 | 154-031 • 154-0031-00 • 154-0286-00 | Vacuum Tube (Pentode) | 7.5 W power pentode | 132 • 310 • 310A • 316 • 317 • 515 • 524 • 525 • 531 • 535 • 535A • 545 • 545A • 545B • 549 • 570 • 581 • 581A • 585 • 585A • 3A74 |
6CY5 | 154-0207-00 | Vacuum Tube (Tetrode) | tetrode | 581 • 585 • 581A • 585A |
6DJ8 | 154-0187-00 • 154-0305-00 | Vacuum Tube (Dual Triode) | dual triode | 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 |
6EW6 | 154-0212-00 | Vacuum Tube (Pentode) | pentode | 132 • 360 • 51 • 527 • 581 • 581A • 585 • 585A • 3T77 • 3T77A |
6NO45 | Discrete component | 6.3 V / 500 mA, 45-second delay relay | 581 • 585 | |
7699 | Vacuum Tube (Dual Tetrode) | dual tetrode | 581 • 585 | |
NE-2 | 150-002 • 150-0002-00 | Gas Discharge Tube (neon lamp) | Neon lamp | 511 • 511A • 581 • 581A • 585 • 585A • 545A • TU-4 |
OC171 | 152-0102-00 | Discrete component | Germanium PNP transistor | 581 • 585 |
STD615 | 152-0102-00 | Discrete component | 10 mA, 28 pF germanium tunnel diode | 581 • 585 • TU-5 |
T581 | 154-0224-00 • 154-0228-00 • 154-0229-00 • 154-0230-00 • 154-0297-00 • 154-0354-00 • 154-0396-00 • 154-0435-00 • 154-0445-00 • 154-0446-00 • 154-0479-00 • 154-0479-01 • 154-0479-02 | CRT | CRT | 581 • 585 |
Some Parts Used in the 581A
Part | Part Number(s) | Class | Description | Used in |
---|---|---|---|---|
120-0141-00 | 120-0141-00 | Discrete component | power transformer | 581 • 581A • 585 • 585A |
12AU7 | 154-041 • 154-0041-00 • 154-0287-00 | Vacuum Tube (Dual Triode) | dual medium-μ triode | 104 • 104A • 122 • 160 • 161 • 162 • 181 • 190 • 310 • 310A • 316 • 317 • 3C66 • 502 • 502A • 507 • 511A • 512 • 516 • 517 • 517A • 524 • 526 • 535 • 536 • 545 • 545A • 545B • 547 • 549 • 555 • 561 • 564 • 570 • 575 • 581 • 581A • 585 • 585A • C • D • E • N • Q • Hickok 1825 |
12AX7 | 154-043 • 154-0043-00 | Vacuum Tube (Dual Triode) | dual triode | 3C66 • 513 • 524 • 531 • 531A • 535 • 536 • 545 • 545A • 545B • 546 • 547 • 549 • 555 • 570 • 581 • 581A • 585 • 585A • E • Q • Hickok 1825 |
12B4 | 154-044 • 154-0044-00 | Vacuum Tube (Triode) | power triode | 126 • 310 • 310A • 316 • 317 • 502 • 502A • 524 • 526 • 541 • 541A • 535 • 535A • 545 • 545A • 546 • 547 • 570 • 549 • 551 • 555 • 513 • 581 • 581A • 585 • 585A |
1N3848 | 152-0140-00 | Discrete component | 10 mA, 25 pF tunnel diode | 581A • 585A • RM585A • 7B52 • S-53 |
5642 | 154-0051-00 • 154-0079-00 | Vacuum Tube (Diode) | directly-heated high-voltage rectifier | 310 • 310A • 316 • 317 • 360 • 453 • 502 • 502A • 503 • 504 • 506 • 513 • 515 • 516 • 524 • 529 • RM529 • 533 • 533A • 535 • 536 • 543 • 543A • 543B • 545 • 545A • 545B • 547 • 551 • 555 • 556 • 560 • 561 • 561A • 561S • 564 • 567 • 570 • 575 • 581 • 581A • 585 • 585A • 647 • 647A |
5651 | 154-052 • 154-0052-00 • 154-0288-00 | Gas Discharge Tube (Voltage regulator) | 87 V voltage reference | 128 • 160 • 310 • 310A • 502 • 503 • 504 • 511A • 512 • 516 • 517 • 524 • 526 • 531 • 531A • 535 • 536 • 541 • 541A • 543 • 543A • 543B • 545 • 545A • 545B • 570 • 549 • 581 • 581A • 585 • 585A |
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 |
6AU5 | 154-021 • 154-0021-00 | Vacuum Tube (Pentode) | 10 W beam power pentode | 507 • 513 • 516 • 517 • 517A • 531 • 535 • 541 • 535 • 545 • 547 • 581 • 581A • 585 • 585A |
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 |
6CL6 | 154-031 • 154-0031-00 • 154-0286-00 | Vacuum Tube (Pentode) | 7.5 W power pentode | 132 • 310 • 310A • 316 • 317 • 515 • 524 • 525 • 531 • 535 • 535A • 545 • 545A • 545B • 549 • 570 • 581 • 581A • 585 • 585A • 3A74 |
6CY5 | 154-0207-00 | Vacuum Tube (Tetrode) | tetrode | 581 • 585 • 581A • 585A |
6DJ8 | 154-0187-00 • 154-0305-00 | Vacuum Tube (Dual Triode) | dual triode | 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 |
6EW6 | 154-0212-00 | Vacuum Tube (Pentode) | pentode | 132 • 360 • 51 • 527 • 581 • 581A • 585 • 585A • 3T77 • 3T77A |
7788 | 154-0420-00 | Vacuum Tube (Pentode) | long life, shock and vibration resistant pentode | 529 • RM529 • 581A • 585A • RM581 • RM585 • Telequipment D56 • 545B |
8426 | Vacuum Tube (Pentode) | RF pentode | O • 545A • 547 • 549 • 581A • 585A | |
NE-2 | 150-002 • 150-0002-00 | Gas Discharge Tube (neon lamp) | Neon lamp | 511 • 511A • 581 • 581A • 585 • 585A • 545A • TU-4 |
SMTD995 | 152-0140-01 | Discrete component | 10 mA, 8 pF tunnel diode | 1S1 • 1S2 • 1502 • 21A • 22A • 3T5 • 3T6 • 475 • 475A • 475M • 544 • R544 • 546 • RM546 • 547 • RM547 • 556 • R556 • 581A • 585A • RM585 • 7B52 • 7B53N • 7B70 • 7B71 • 7D10 • 7D11 • 7T11 • 7T11A • R7912 • S-51 • S-52 • TU-5 • 067-0572-00 • 067-0572-01 • 067-0681-00 |
T5810 | 154-0479-00 • 154-0479-01 • 154-0479-02 | CRT | CRT | 581A • 585A |
Some plug-ins / accessories compatible with 580-series scopes
Page | Manufacturer | Model | Description | Introduced | Discontinued |
---|---|---|---|---|---|
80 | Tektronix | 80 | vertical amplifier | 1959 | (?) |
81 | Tektronix | Type 81 | plug-in adapter | 1960 | 1972 |
82 | Tektronix | 82 | 85 MHz dual-trace amplifier | 1962 | 1972 |
84 | Tektronix | 84 | calibration fixture | 1962 | (?) |
86 | Tektronix | 86 | vertical amplifier | 1963 | 1972 |
TU-3 | Tektronix | calibration fixture | (?) | (?) |