516

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Tektronix 516
15 MHz dual-trace scope
Tektronix 516

Produced from 1960 to 1972

Manuals

Alternate

(All manuals in PDF format unless noted otherwise)
Manuals – Specifications – Links – Pictures

The Tektronix Type 516 is a monolithic 15 MHz dual-trace oscilloscope introduced in 1960, essentially a dual trace version of the 515. It contains no transistors.

Key Specifications

  • please add

Internals

The main difference between the 515 and 516 is the front end - the 515 uses a conventional rotary switch for the input attenuator while the 516 uses turret attenuators.

There are also some differences in the vertical amplifier circuitry. The 515 uses a 6AU6 pentode at the front end. The 516 uses a 6DJ8 dual triode at the front end, and in many other places throughout the instrument.

In a 516, the delay line directly drives the vertical deflection plates of the CRT.

The standard CRT is the T55 with P31 phosphor. It has a post-deflection acceleration voltage of +2,335 V. The CRT cathode runs at –1,675 V. The HV power supply uses three 5642 rectifier tubes:

  • V822 for the CRT cathode voltage
  • V832 for the CRT control grid voltage
  • V842 for the post-deflection voltage

The LV power supply is typical of 1960's Tek scopes. It provides:

  • +400 V unregulated
  • +300 V regulated, using one triode of a 6080 as the output tube
  • +100 V regulated, using one triode of a 6080 as the output tube
  • –150 V regulated, using a 6AU5 tube as the output tube

The reference for the LV supply is a 5651 which produces a –87 V reference, which controls the –150 V supply. The –150 V supply is used as the reference for the +100 V and +300 V supplies. The LV power supply uses the 120-142 power transformer.

Pictures

External

Internals

Schematics


Some Parts Used in the 516

Page Class Description Used in
12AT7 Vacuum Tube (Dual Triode) dual high-gain triode 161 180 310 310A 315 316 360 502 502A 512 513 513D 514 514AD 514D 516 524AD 529 RM529 544 546 547 556 3A2 3A75 1M1 A B C G H K L M N K R S Z
12AU7 Vacuum Tube (Dual Triode) dual medium-μ triode 122 160 161 162 181 190 310 316 317 502 502A 512 516 517 517A 526 535 536 545 545A 545B 547 549 555 575 581 581A 585 585A C D E N Q
5642 Vacuum Tube (Diode) directly-heated high-voltage rectifier 310 310A 316 317 360 453 502 502A 503 504 506 513 515 516 529 RM529 533 533A 535 536 543 543A 543B 545 545A 545B 547 551 555 556 567 575 581 581A 585 585A 647
6197 Vacuum Tube (Pentode) sharp-cutoff pentode 516 531 533 535 535A 556 3A75
6AL5 Vacuum Tube (Dual Diode) high-perveance dual diode 163 181 190 310 310A 315 316 317 502 502A 503 511 511A 512 516 517 517A 526 535 535A 545 545A 549 581 581A 585 585A 551 C T Telequipment S52
6AN8 Vacuum Tube (Triode/Pentode) triode-pentode combo 310 310A 316 317 360 502 502A 516 517 517A 526 575 N
6AU5 Vacuum Tube (Pentode) 10 W beam power pentode 513 516 517 517A 531 535 541 535 545 581 581A 585 585A
6AU6 Vacuum Tube (Pentode) RF pentode 2A60 80 107 160 181 190 310 310A 316 317 360 502 502A 512 513 516 517 517A 526 529 RM529 531 531A 535 536 545 545A 546 547 549 555 575 581 581A 585 585A C CA Q
6BL8 Vacuum Tube (Triode/Pentode) triode-pentode combo 503 504 516 549 Telequipment D52 Telequipment S31 Telequipment S32 Telequipment S32A Telequipment S51 Telequipment S52
6DJ8 Vacuum Tube (Dual Triode) dual triode 80 132 161 310A 316 317 3A75 502 502A 503 504 515 516 519 526 529 RM529 533 535 536 543 544 545 545A 545B 546 547 549 555 556 565 581 581A 585 585A 661 2A60 63 2A63 3A7 3A8 1121 1A4 67 81 82 86 3B1 3B4 1S1 B O W Z Telequipment S32A Telequipment D52 Telequipment TD51 Telequipment S52 Telequipment S51 Telequipment Type A
6GM8 Vacuum Tube (Dual Triode) dual triode 81 516 S
7119 Vacuum Tube (Dual Triode) dual triode 067-0532-00 191 3A3 3B4 3B5 516 545B 549 661
T0550 CRT CRT 515 515A 516
T55 CRT CRT 515 515A 516