[Milsurplus] What models should I be looking for in a sweep generator?

[john p hutchins]

All -

On a more practical note:
I need a decent sweep generator 100Khz~20Mhz with an adjustable sweep 
width 5Khz-Up? , sweep rate? To check and adjust filter circuits in my 
BC-348.  What models should I be looking for?   What do I need?

Thanks
Hutch