5L4N

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Tektronix 5L4N
100 kHz Spectrum Analyzer plugin
Tek 5L4N

Compatible with 5000-series scopes

Produced from 1975 to 1983

Manuals
Manuals – Specifications – Links – Pictures

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

please expand

Links

Documents Referencing 5L4N

Document Class Title Authors Year Links
Tekscope 1975 V7 N3.pdf Article A Potpourri of Modifications and Service Hints 1975
Tekscope 1977 V9 N2.pdf Article Measuring Harmonic Distortion with a Spectrum Analyzer Ken Matheson 1977
AX-3107.pdf Application Note The Tektronix Cookbook of Standard Audio Tests using the 5L4N Low Frequency Spectrum Analyzer Clifford B. Schrock 1979
26AX-3582-3.pdf Application Note FM Broadcast Measurements Using the Spectrum Analyzer Clifford B. Schrock 1981

Prices

  • $1,950 in 1975 ($11,100 in 2023 dollars)

Pictures

Components

Some Parts Used in the 5L4N

Part Part Number(s) Class Description Used in
151-0261-00 151-0261-00 Discrete component dual PNP transistor AM501 AM502 CG5001 CG551AP FG501 FG502 FG503 OF150 OF151 OF152 OF235 OS261 RM502A R1140 R5030 R5031 R7912 067-0679-00 067-0807-00 1101 1140A 1141 1142 1350 145 1450 1480 1481 1482 1485 1501 1801 1900 1910 1980 213 26A1 26A2 2620 285 3A9 3A10 3S1 3S2 3S5 3S6 432 434 4501 454 4601 4602 4610 4612 4620 4632 4634 4701 475 492 492A 492AP 494 494P 496 496P 5A13N 5A20N 5A21N 5A22N 5A26 5L4N 502A 5030 5031 576 690SR 7A22 7A29 7B51 7B71 7J20 7L5 7S11 7S12 7912AD
155-0048-01 155-0048-00 155-0048-01 155-0055-00 155-0055-01 Monolithic integrated circuit trigger sweep 211 212 213 214 432 433 5B12N 5B13N 5L4N 603 604 605 606 607 624 SC501 R7912