51
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The Tektronix Type 51 is a sweep plug-in for 560-series scopes, introduced in 1961.
It provides a calibrated sweep speed of 5 ms/div, and a continuously variable magnifier that allows the sweep to be set within the range of 5 ms/div and 25 μs/div. Triggering can be set to automatic, at a specific level, or free-running.
The 51 and the 50 are useful together for measurements in the audio frequency range.
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Schematic
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Components
Some Parts Used in the 51
| Part | Part Number(s) | Class | Description | Used in |
|---|---|---|---|---|
| 6BJ8 | 154-0305-00 | Vacuum Tube (Triode, Dual Diode) | medium-μ triode + dual diode | TU-4 • 51 |
| 6DJ8 | 154-0187-00 • 154-0305-00 | Vacuum Tube (Dual Triode) | dual triode | 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 |