TU-5
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The Tektronix TU-5 is a tunnel diode pulser designed for checking risetime/bandwidth of probes such as the P6045 FET Probe. It provides nanosecond-risetime pulses when powered from a 100 V scope calibrator square wave.
Key Specifications
| Risetime | Early version ≤1.5 ns, later version ≤1 (typ. 0.5) ns |
|---|---|
| Input | 0/+100 V, 10 mA pulses (−100 V from Type 105 Pulse Generator using an adapter) |
| Output | ≥260 mV into 50 Ω, ~25 Ω source impedance |
| Tunnel diode | Early version (before June 10, 1964), 152-0102-00; later version, 152-0154-00 or 152-0140-01 |
Pictures
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TU-5
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TU-5 to 105 Adapter
Components
Some Parts Used in the TU-5
| Part | Part Number(s) | Class | Description | Used in |
|---|---|---|---|---|
| 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 |
| STD615 | 152-0102-00 | Discrete component | 10 mA, 28 pF germanium tunnel diode | 581 • 585 • TU-5 |
| TD253 | 152-0154-00 | Discrete component | 10 mA, 9 pF germanium tunnel diode | 547 • 7B70 • TU-5 |