7613
The Tektronix 7613 is a 100 MHz variable-persistence storage oscilloscope that uses two vertical and one horizontal 7000-series plug-ins. There is also a rack-mount version, the R7613.
In the 76x3 family (7613, 7623 and 7633), the 7613 has the slowest writing speed specification (no fast storage mode). In storage mode, it is therefore more suited to lower-frequency work, or as a display for spectrum analyzers or sampling plugins.
Project Engineer for the 7613 and 7623 was Bill DeVey under direction of Oliver Dalton. John Durecka did the electrical design. Doug Giesbers, Ed Wolf, and Chuck Davis provided the mechanical design. Aiding the overall design effort were Dave McCullough and Dick Anderson.
Key Specifications
| Bandwidth | 100 MHz |
|---|---|
| Fastest calibrated sweep | 5 ns/div |
| Stored writing speed | > 5 div/μs |
| Display | P31 phosphor, 8×10 divisions of 0.9 cm (Tek 154-0670-00 tube), 8.5 kV acceleration |
| Persistence | 15 seconds at 5 div/μs, 60 seconds at 1 div/μs |
| Inputs | Z Axis |
| Outputs | Camera power, Vert signal, +Gate, +Sawtooth |
| Power | 100/110/120, 200/220/240 V, ±10%, 50–60 Hz; max. 170 W (R7613: 180 W) |
| Weight | 13.6 kg / 30 lb (instrument only) |
Options
- Opt.1: Without readout
- Opt.3: Extra EMI shielding
- Opt.5: Line frequency 50-400 Hz
- Opt.6: Spectrum analyzer graticule
- Opt.7: Without Signals Out
Links
Documents Referencing 7613
| Document | Class | Title | Authors | Year | Links |
|---|---|---|---|---|---|
| Tekscope 1972 V4 N4 Jul 1972.pdf | Article | Three Kinds of Storage | 1972 | 7313 • 7613 • 7623 • T7411 | |
| 7000 series brochure March 1973.pdf | Brochure | 7000 series brochure, March 1973 | 1973 | 7A11 • 7A12 • 7A13 • 7A14 • 7A15A • 7A16A • 7A17 • 7A18 • 7A19 • 7A21N • 7A22 • 7B50 • 7B53A • 7B70 • 7B71 • 7B92 • 7CT1N • 7D11 • 7D13 • 7D14 • 7D15 • 7M11 • 7L12 • 7S11 • 7S12 • 7T11 • 7704A • R7704 • 7904 • R7903 • 7603 • R7603 • 7403N • R7403N • 7313 • R7313 • 7613 • R7613 • 7623 • R7623 • P7001 | |
| Tekscope 1975 V7 N3.pdf | Article | Storage Expands Your Oscilloscope Measurement Capabilities | Dave McCullough | 1975 | 7514 • 7313 • 7613 • 7623 • 7633 |
Internals
The 7613's vertical output amplifier (below s/n 150000) is built around a 155-0080-00 hybrid. Later versions use the same vertical amplifier as used in the 7623A and 7633. Other custom Tek ICs used include 155-0011-00 clock & chop blanking, 155-0022-00 channel switch, and the 7000 series readout system chips.
The 7613, like the other 76xx models, has a linear supply with discrete regulator circuits, which does not provide +5 V for lights (A9) without modification.
The 7613 uses a CRT anode voltage of 7 kV, produced by a solid-state voltage multiplier fed by a transformer.
Prices
| Year | 1973 | 1976 | 1980 | 1984 | 1990 | |
|---|---|---|---|---|---|---|
| Mainframe only | Catalog price | $2,500 | $2,850 | $3,620 | $5,330 | $8,600 |
| In 2024 Dollars | $17,700 | $15,700 | $13,800 | $16,100 | $20,700 | |
| Mainframe with 2 × 7A18A, 7B53A | Catalog price | $4,420 | $5,005 | $6,585 | $9,345 | $14,680 |
| In 2024 Dollars | $31,300 | $27,600 | $25,100 | $28,300 | $35,300 |
Pictures
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7613 front
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R7613 front
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Left side - X amplifier (top), Y amplifier (center), power supply (bottom left) and plugin motherboard (bottom center)
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Right side - calibrator (far left), storage control (center), readout (right)
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Z amplifier and dynamic focus board (top), readout board (center)
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Calibrator (left) and storage control boards
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V and H amplifier detail
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Another 7613 vertical amplifier
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vertical amplifier detail
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vertical output transistor mounting
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Voltage regulator board
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CRT removed
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CRT neck detail
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Comparison of electron guns: Tektronix 7613 (bottom) HP 1741A (top)
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7613 graticule
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7613 with option 6, geometry alignment with 067-0587-02
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7613 with option 6, geometry alignment, 067-0587-02 in horizontal slot
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R7613 rear connections
Components
Some Parts Used in the 7613