5L4N
(Redirected from 5L4)
The Tektronix 5L4N is a 100 kHz LF spectrum analyzer plug-in for 5000-series scopes. It features a built-in tracking generator.
As is typical for non-FFT low frequency analyzers, high spectral resolution at low frequencies implies slow sweep speeds (as slow as 10 s/Div in this unit) which require a storage mainframe or recorder to view properly.
It was made from 1975 to 1983.
Key Specifications
| Frequency range | 10 Hz to 100 kHz |
|---|---|
| Dynamic range | 80 dB |
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Links
- http://www.radiomuseum.org/r/tektronix_5l4n_5000_series.html
- Tek 5L4N @ barrytech.com (waybackarchive)
- http://www.amplifier.cd/Test_Equipment/Tektronix/Tektronix_other/5L4N.htm
Documents referencing 5L4N
| Document | Class | Title | Authors | Year | Links |
|---|---|---|---|---|---|
| Tekscope 1975 V7 N3.pdf | Article | A Potpourri of Modifications and Service Hints | 1975 | 465 • 5L4N • 464 • 466 • 575 • 576 • 577 • TM504 | |
| Tekscope 1977 V9 N2.pdf | Article | Measuring Harmonic Distortion with a Spectrum Analyzer | Ken Matheson | 1977 | FG504 • 7L5 • 5L4N |
| AX-3107.pdf | Application Note | The Tektronix Cookbook of Standard Audio Tests using the 5L4N Low Frequency Spectrum Analyzer | Clifford B. Schrock | 1979 | 5L4N |
| 26AX-3582-3.pdf | Application Note | FM Broadcast Measurements Using the Spectrum Analyzer | Clifford B. Schrock | 1981 | 7L12 • 7K11 • 5L4N • SG502 |
Prices
| Year | Catalog price | In 2026 dollars |
|---|---|---|
| 1975 | $1,950 | ~$12,000 |
