Selling my Thurlby Thandar Instruments TSA1000 1GHz Spectrum Analyser Adaptor.
This is used with a normal oscilloscope. It has a Y output for the amplitude display and an X output for the scan but I found you can easily just use the scope's timebase to lock onto the Y signal if you don't happen to have a scope with an X input. Plenty of info about it on the web if you search for Thurlby TSA1000 (with no quotes).
£150 + carriage.