543

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Tektronix 543
30 MHz oscilloscope
Tektronix 543 front

Produced from 1958 to 1973

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix Type 543 (rack mount RM43) is an all-tube 30 MHz scope introduced in 1958.

It takes letter-series and 1-series plug-ins.

It is similar to a 545, but without the second, delayed timebase. Instead, it has a range of horizontal magnifiers from ×2 to ×100.

While the 545 has two non-calibrated X-input sensitivities, the 543 has an X input with calibrated deflection sensitivity of 0.1 V/cm, 1 V/cm, or 10 V/cm.

The 543 was designed by Bob Shand.

Key Specifications

     — 543 —
Bandwidth DC to 30 MHz (≤ 3 dB) with Type K plug-in
Rise time 0.012 μs
Screen Area 4 cm × 10 cm
     — 543B —
Bandwidth DC to 33 MHz (≤ 3 dB) with Type 1A1 plug-in
Rise time 0.010 μs
Screen Area 6 cm × 10 cm
     — all —
Line Voltage 108/115/122/216/230/244 VAC ±10%, selected via primary voltage selector and voltage range selector switches, 50 Hz to 60 Hz
Thermal Protection Automatic resetting thermal cutout, in case internal temperature exceeds safe operating level
Power Consumption 530 W with Type CA plug-in
Cooling AC Fan
Trigger Modes AC/DC/AC LF Reject, and HF Sync
Anode Potential 10 kV
Construction Aluminum alloy chassis. Anodized front panel
Weight 27.8 kg (61.5 lbs)

Internals

The 543 has the same six-stage balanced distributed amplifier (twelve 6DK6 tubes) as the 545, driving a lumped L/C delay line just before the deflection plates.

Total acceleration voltage on the CRT is 10 kV. The CRT power supply uses five 5642 HV tube diodes. The standard CRT for the 543 is the T65 with P2 phosphor, part number 154-175.

The 543B is a tube/transistor hybrid scope. The vertical amplifier has a 6DJ8 cathode follower stage followed by two transistor/tube cascode stages with a 186 Ω delay line in-between. The standard CRT for the 543B is part number 154-0478-00, also known as the T5470-31-2. There is a rackmount version, Type RM543B.

Question: Does a model 543A exist? Yes, but 543A specification are needed.

Pictures

543

  • 543 with D Plugin

    543 with D Plugin

  • 543 front view

    543 front view

  • 543 top

    543 top

  • 543 right

    543 right

  • 543 top

    543 top

  • 543 left

    543 left

  • 543 rear

    543 rear

  • 543 Block Diagram

    543 Block Diagram

  • 543 Horizontal Amplifier

    543 Horizontal Amplifier

  • 543 Vertical Amplifier

    543 Vertical Amplifier

  • 543 Trigger

    543 Trigger

  • 543 Timebase

    543 Timebase

  • 543 Delay Line

    543 Delay Line

  • 543 CRT Circuit

    543 CRT Circuit

  • 543 Low-Voltage Power Supply

    543 Low-Voltage Power Supply

  • 543 Calibrator

    543 Calibrator

543A

  • front view of 543A

    front view of 543A

  • Internal left side of 543A

    Internal left side of 543A

  • Internal right side of 543A

    Internal right side of 543A

  • Internel top of 543A

    Internel top of 543A

  • Internal trim pots on top of 543A

    Internal trim pots on top of 543A

543B

  • 543B with CA

    543B with CA

  • 543B

    543B

  • 543B

    543B

RM543B

  • RM543B

    RM543B

  • RM543B side

    RM543B side

Components

Some Parts Used in the 543

Part Part Number(s) Class Description Used in
12BY7A 154-047 • 154-0047-00 Vacuum Tube (Pentode) miniature 6.5 W power pentode 106 • 163 • 524 • 531 • 531A • RM31A • 533 • 535 • 535A • RM35A • 536 • 541 • 543 • 535 • 545 • 545A • 549 • 555 • 75 • 3A75 • 3B5
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 • 531A • RM31A • 532 • 533 • 533A • 535 • 535A • RM35A • 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 • 532 • 535 • 535A • RM35A • 536 • 541 • 541A • 543 • 543A • 543B • 545 • 545A • 545B • 570 • 549 • 581 • 581A • 585 • 585A
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 • 531A • RM31A • 533 • 535 • 535A • RM35A • 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
6DK6 154-0149-00 • 154-0367-00 Vacuum Tube (Pentode) high-frequency miniature pentode 180 • 503 • 513 • 514 • 541 • 543 • 535 • 545 • 545A • 551 • 555
T5430 154-0175-00 • 154-0758-00 • 154-0758-03 • 154-0758-04 • 154-0183-00 CRT 5" CRT 541A • 543 • 543A • 545A


Some Parts Used in the 543A

Part Part Number(s) Class Description Used in
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 • 531A • RM31A • 532 • 533 • 533A • 535 • 535A • RM35A • 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 • 532 • 535 • 535A • RM35A • 536 • 541 • 541A • 543 • 543A • 543B • 545 • 545A • 545B • 570 • 549 • 581 • 581A • 585 • 585A
T5430 154-0175-00 • 154-0758-00 • 154-0758-03 • 154-0758-04 • 154-0183-00 CRT 5" CRT 541A • 543 • 543A • 545A


Some Parts Used in the 543B

Part Part Number(s) Class Description Used in
120-0308-00 120-0308-00 Discrete component high voltage transformer 543B • 544 • 545B • 546 • 547
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 • 531A • RM31A • 532 • 533 • 533A • 535 • 535A • RM35A • 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 • 532 • 535 • 535A • RM35A • 536 • 541 • 541A • 543 • 543A • 543B • 545 • 545A • 545B • 570 • 549 • 581 • 581A • 585 • 585A
T5470 154-0429-00 • 154-0450-00 • 154-0451-00 • 154-0452-00 • 154-0457-00 • 154-0458-00 • 154-0459-00 • 154-0478-00 • 154-0478-01 • 154-0478-02 • 154-0478-03 • 154-0568-00 • 154-0568-01 • 154-0568-02 • 154-0568-03 CRT 5" electrostatic deflection CRT 543B • 544 • 545B • 546 • 547


Some Parts Used in the RM43

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Some Parts Used in the RM543B

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