Pentrix L20

Pentrix L20
4 GHz Spectrum Analyzer plug-in L20 front Compatible with 500-series scopes Produced from (?) to 1965 Manuals Tektronix/Pentrix L20-L30 Manual (PDF)

The Pentrix L20 is a spectrum analyzer plug-in for 500-series scopes.

It was renamed 1L20 after Tektronix took over Pentrix in 1964.

Frequency range is 10 MHz to 4 GHz.

Specifications

please add