7L5: Difference between revisions
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* [[Media:070-1734-01.pdf|Tektronix 7L5 Operators Manual]] (OCR) | * [[Media:070-1734-00.pdf|Tektronix 7L5 Operators Manual -00]] (OCR) | ||
* [[Media:070-1734-01.pdf|Tektronix 7L5 Operators Manual -01]] (OCR) | |||
* [[Media:070-2184-01.pdf|Tektronix 7L5 Service Manual]] (OCR) | * [[Media:070-2184-01.pdf|Tektronix 7L5 Service Manual]] (OCR) | ||
* [[Media:070-2155-03.pdf|Tektronix 7L5 Options Manual]] (OCR) | * [[Media:070-2155-03.pdf|Tektronix 7L5 Options Manual]] (OCR) | ||
Revision as of 13:09, 14 October 2022
The Tektronix 7L5 is a low frequency (10 Hz – 5 MHz) spectrum analyzer plug-in for 7000-series scopes.
It has built-in digital storage, so it will work fine in non-storage mainframes such as the large-screen 7603.
It also features digital scale and marker level/frequency (6 digits) readout, and a "max hold" function.
According to the 070-2184-01 manual, instruments with a serial number below Β070000 are missing the B − (Save A) feature and the corresponding button on the front panel. The military version is called PL-1391/U and is also lacking the B − (Save A) feature.
Key Specifications
| Input frequency | 10 Hz – 5 MHz |
|---|---|
| Drift | < 5 Hz/h |
| Resolution bandwidth | 10 Hz – 30 kHz in ×3 / ×10 steps |
| Sweep rate | 10 s/Div to 0.1 ms/Div in 1−2−5 sequence plus Auto |
| Residual FM | < 40 Hzp-p (< 1 Hz from 50 Hz/Div to 2 kHz/Div) |
| Outputs | Horizontal, Video, Calibrator |
| Input impedance |
Options
No. Log sweep display Tracking generator LED Readout 21 • 25 • 28 • 30 • • 31 • • 32 • • 33 • • •
Links
- 7L5 page @ amplifier.cd with internal photos
- 7L5 in operation @ youtube
- L1-GC
Prices
| Year | 1976 | 1980 | 1988 |
|---|---|---|---|
| Catalog price | $4,500 | $7,075 | $12,500 |
| In 2022 Dollars | $22,400 | $24,400 | $30,000 |
According to an internal memo, in 1979 annual sales were estimated at 454 units.
Pictures
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7L5 Opt. 33 in 7633 mainframe
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7L5 Opt. 32
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7L5 Opt. 25
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7L5 in 7844
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7L5 Opt. 25 without B - (Save A)
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7L5 Opt.25 tracking generator plug-in
For internal pictures see the repair section.