They were pretty rare, even in their day. I only saw one once. My barber (W8BQG, Keith Hills, sk) ran one with a Johnson Thunderbolt and an 'A4, and that's the only reason I knew of them. The other top-tier hams in town ran 100V's. If you haven't already, you can learn lots about them through google-fu, including a lawsuit from Collins when Eldico tried to second-source military HF gear.

The 100F may have been the first ham transmitter with a 'scope built-in. I [think] (but not sure) that they pre-dated CE's 100V.