1L20

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Tektronix 1L20
4.2 GHz Spectrum Analyzer plug-in
1L20 front

Compatible with 500-series scopes

Produced from 1965 to 1975

Manuals
Manuals – Specifications – Links – Pictures

The Tektronix 1L20 is a spectrum analyzer plug-in for 500-series scopes. It covers the frequency range from 10 MHz to 4.2 GHz.

The 1L20 was originally the third-party Pentrix L-20. The model number was changed some time after Tektronix took over Pentrix in 1964.

Specifications

Frequency range 10 MHz to 4 GHz
Sensitivity -110 to -90 dBm
Dispersion 15 kHz to 60 MHz, magnifier usable to 2.5 kHz
Resolution bandwidth 1 kHz to 100 kHz, variable
Display log, lin, square, video

Prices

$1,995 (1965) equiv. to $15,200 in 2016

Pictures

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