Voltage limiter - help needed

Nearing the end of resto project - real close to finishing up, but can't figure out my gauges. I've read a lot about the voltage limiter but don't know if it's built in, and if not where it is and what it looks like. I do know this - bench tested my gauges and they work. Put them in the car tonight, fired it up and the fuel pegged (to 3/4 full, even though I know it's nearly empty), and the fuel/alternator/oil pressure/temp cluster started smoking. So this tells me that the voltage limiter is either missing or not working. Looking for help pointing out where this thing is, etc. and suggestions for how to fix/replace. BTW: '68 Cuda with original gauges. I've attached a phot of the backside of the gauges. Is the canister looking thing the limiter? image.jpeg
Also, second question: anyone know how to hook up the "alternator" gauge?