Budget Tube Amp (newbie)

The RM10 gets rave reviews, but it is a power amp so you will need a preamp. A passive may work, but if not you’ll need to add an active preamp. In both scenarios you’ll also need to audition and purchase interconnects.
For your first foray into tubes, I suggest you go for an integrated. As far as unrefined sound goes, that can usually be treated by rolling in different tubes.

Have you looked at a used PrimaLuna? They present the warmth that you liked from the Dynaco.

Second for good value with Jolida/Black Ice. I have Jolida separates and they sound great and were an excellent value. I also have an older Jolida integrated amp but it needs some relatively expensive repairs so it sits in my basement. 

Many thanks for all the input. I may be leaning to a USED integrated Jolida or Prima Luna depending on the price. I've gotten some input regarding not sure if a 35 WPC integrated tube amp will push the Large Advent I have. All input is welcome!
Best regards,
Rob

check out decware.com - made in Joliet, IL. Top quality sound, build and service.

Pick a used PrimaLuna integrated that’s at the top end of your price range (I do think they improve up model, so pay for what you can afford). They are a great gateway drug into tubes and they can drive fairly difficult loads, and certainly medium difficult ones. You may never go back to solid state.  I still own 2.