Transformer question.
 

I've been looking at building a few vacuum-tube based projects (just for
the heck of it...and maybe use a few of the tubes I have siting around!
:)) I have been able to acquire a few single-winding transformers, both
HV(175-250 V) and either 6 or 12 for heaters
Question: since I do not have the dual-voltage transformers in a single
package, when wiring them into the circuit, are the 117V primaries
wired in series? This SEEMS correct, but my suppositions have been wrong
before!

"Stupidty is the only universal capital crime; the sentence is death.
There is no appeal, and execution is
carried out automatically and without pity."
Robert A. Heinlein
"TIme Enough For Love"