[Amps] Amp With A Roller Inductor?

[Joe]

Here's a Question,

Been hitting a dead end. I have had various AMPs all my Ham life, from 
1975. But all have been like the SB-220,

SB-220,
SB-200
FL-2100,
Henry 2K

etc.

Plate cap, load cap, tapped inductor.
and old school tube rigs Drakes mostly.

So very familiar with tuning it up.

Now I have been You Tubing, with zero results.

And just plain old Googleing,,,, and all I get are results about antenna 
tuners.

how to tune an amplifier with a roller inductor?

I can not find an answer to that question anywhere.

How does one tune an amp that uses instead of a tapped inductor, but 
uses a roller one?

Joe WB9SBD