Re: 7A16A high frequency compensation.
I've just uploaded two screenshots:
It's my PG506's (+) fast rise output directly coupled to a PM3340 2GHz Philips oscilloscope. High quality, 80 cm RG223/U with Uber-Suhner connectors (BNC to N) cable was used. 10x attenuator was used to keep the PG506's output level over 100 mV.
A nice 632 ps rise time with no aberrations. This implies that the calibration of my 7A16A is practically perfect, as Albert also said