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The '''Tektronix 468''' is a digital/analog scope, essentially a [[465B]] with an added 25 MS/s 8 bit digitizer. | The '''Tektronix 468''' is a digital/analog scope, essentially a [[465B]] with an added 25 MS/s 8 bit digitizer. | ||
The 468 uses the [[154-0731-00]] CRT. | The 468 uses the [[154-0731-00]] CRT. | ||
The 468 is controlled by an [[Intel 8085]]A processor. | |||
{{BeginSpecs}} | {{BeginSpecs}} | ||
{{Spec | Bandwidth | 100 MHz analog, 10 MHz digital repetitive, 2.5 MHz digital single-shot }} | {{Spec | Bandwidth | 100 MHz analog, 10 MHz digital repetitive, 2.5 MHz digital single-shot }} | ||
{{Spec | Deflection | 5 mV/Div to 5 V/Div, 1–2–5; CH1-CH2 cascaded – 1 mV/Div, 50 MHz }} | {{Spec | Deflection | 5 mV/Div to 5 V/Div, 1–2–5; CH1-CH2 cascaded – 1 mV/Div, 50 MHz }} | ||
{{Spec | | {{Spec | Sweep | 20 ns/Div to 50 ms/Div (B) or 500 ms/Div (A), 1–2–5, ×10 magnifier to 2 ns/Div }} | ||
{{Spec | Sampling rate | 25 MS/s }} | {{Spec | Sampling rate | 25 MS/s }} | ||
{{Spec | Resolution | 8 bit }} | {{Spec | Resolution | 8 bit }} | ||
{{Spec | Input impedance | 1 MΩ // 20 pF }} | {{Spec | Input impedance | 1 MΩ // 20 pF }} | ||
{{Spec | Power | 90–210 V, 108–132 V, 198–242 V or 216–250 V; 48–440 Hz }} | {{Spec | Power | 90–210 V, 108–132 V, 198–242 V or 216–250 V; 48–440 Hz }} | ||
{{Spec | Dimensions | 18.3 cm × 29.2 cm × 55 cm (H×W×D) }} | {{Spec | Dimensions | 18.3 cm × 29.2 cm × 55 cm (H×W×D) }} | ||
{{Spec | Weight | 15 kg (33 lb) }} | {{Spec | Weight | 15 kg (33 lb) }} | ||
{{Spec | Options | | {{Spec | Options | | ||
* Opt.02 − GPIB (A17 board) | * Opt.02 − GPIB (A17 board) | ||
| Line 41: | Line 43: | ||
}} | }} | ||
{{EndSpecs}} | {{EndSpecs}} | ||
==Repair issues== | ==Repair issues== | ||
Revision as of 12:15, 4 March 2022
The Tektronix 468 is a digital/analog scope, essentially a 465B with an added 25 MS/s 8 bit digitizer. The 468 uses the 154-0731-00 CRT.
The 468 is controlled by an Intel 8085A processor.
Key Specifications
| Bandwidth | 100 MHz analog, 10 MHz digital repetitive, 2.5 MHz digital single-shot |
|---|---|
| Deflection | 5 mV/Div to 5 V/Div, 1–2–5; CH1-CH2 cascaded – 1 mV/Div, 50 MHz |
| Sweep | 20 ns/Div to 50 ms/Div (B) or 500 ms/Div (A), 1–2–5, ×10 magnifier to 2 ns/Div |
| Sampling rate | 25 MS/s |
| Resolution | 8 bit |
| Input impedance | 1 MΩ // 20 pF |
| Power | 90–210 V, 108–132 V, 198–242 V or 216–250 V; 48–440 Hz |
| Dimensions | 18.3 cm × 29.2 cm × 55 cm (H×W×D) |
| Weight | 15 kg (33 lb) |
| Options |
|
Repair issues
→ see 468/Repairs page
Links
Pictures
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-
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front
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top and A16
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Storage & Display A16
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right Trigger A12
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left V Preamp A11
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bottom Interface Board A15
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rear
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Processor Board Set
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Microprocessor Board A21
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Memory Board A18
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Timebase/Power Supply A22
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Timebase Oscillator A22
CRTs used in the 468
| Page | Part nos | Description | Designers | Used in |
|---|---|---|---|---|
| 154-0731-00 | 154-0731-00 • 154-0731-01 • 154-0731-02 • 154-0731-04 | CRT | Telequipment D75 • 455 • 465 • 465B • 468 |
Custom ICs used in the 468
| Page | Model | Part nos | Description | Designers | Used in |
|---|---|---|---|---|---|
| 155-0022-00 | M036 | 155-0022-00 • 155-0022-01 | analog multiplexer | Gene Andrews | 147 • 148 • 149 • 335 • 468 • 1430 • 1441 • 1461 • 1900 • 1910 • 2220 • 2221 • 2230 • 5223 • 5403 • 5440 • 5441 • 5443 • 5444 • 5A38 • 7313 • 7403N • 7503 • 7504 • 7514 • 7603 • AN/USM-281C • 7613 • 7623 • 7623A • 7633 • 7704 • R7704 • 7704A • 7834 • 7844 • 7854 • R7912 • 7912AD • 7912HB • 7904 • R7903 • 7904A • 7934 • 7A12 • 7A18 • 7A18A • 7A18N • 7B52 • 7B53N • 7D10 • 7D11 • 7D12 • NT-7000 • P7001 |
| 155-0078-00 | M084 | 155-0078-xx • 155-0273-00 • 155-0274-00 | broadband amplifier | John Addis | 464 • 465 • 466 • 468 • 475 • 475A • 475M • 485 • 7834 • 7844 • 7854 • 7904 • R7903 • R7912 • 7912AD • 7912HB • 7104 • 7A16A • 7A16P • 7A24 • 7A26 • 7A42 • 067-0587-01 • 067-0680-00 • AM503 • PG502 • PG508 • DC510 • DC5010 • FG5010 |
| 155-0115-00 | 155-0115-00 | 155-0115-00 | vertical amplifier | 335 • 464 • 465 • 465B • 466 • 468 |