HP 86290B Front Panel

HP86290B RF Generator Plug-in 2GHz to 18GHz TESTED! for HP 8620C/B & HP 8350A/B

Tektronix 7A26 plugin

FLUKE 6060A SYNTHESIZED RF SIGNAL GENERATOR OPTIONS 131;488;570;870 TESTED

HP 8620C SWEEP OSCILLATOR w/ 86222A RF PLUG IN 10-2400 Mhz

HP 8553B Spectrum Analyzer RF Section 141T Plug-In (original, clean, untested)

HP 86242D RF Plug-In Module for 8620C Oscillator (option 008, free returns)

Tektronix 7L13 Spectrum Analyzer Plugin