I either dreamt this, or am just totally off, or just can't get the Google machine to work for me right now.
When I was previously looking around at high voltage vintage ESCs (and ended up with a Zeta), I swear there were Novaks that went to 20v, or maybe 20 cells????

And I swear it was simply in the model number that told you, like a 410 was good for 4-10 cells, and this / these other models were like 420 for 4-20 cells. Can anyone get me back on the right path? I am looking into another dragster project, and found another Zeta that I like, but wouldn't mind comparing specs to a Novak .................... if it ever existed.
Or if you have any other vintage, brushed, min 14.4v volt input ESCs that you would suggest, I am all ears!
I build RCs like people would have done back in the '90s ..................................... if they had 3D printers.