As far as I know, it's "yes" to both questions - the only time Tech or Arcane is important is with the salvage needed to craft the base items.
@Golden Girl
City of Heroes comics and artwork
i can confirm GGs right at one point our base was going thru a transition from arcane to tech so we had a mix of everything and it all worked np
There isnt a problem on earth that cant be solved with the proper aplication of hi explosive's
Darklords of the Underworld/Lords of Light forums [url="http://www.armleg.com/dlotu"]www.armleg.com/dlotu[/url]
Scotlands Bru ill/emp troller lvl 50
Monster Bru SS/stone brute lvl 50
Carman thugs/dark mm lvl 50
Yes
Control is control, whether magic or tech
same for energy.
Only thing is, tech add-ons need tech primary, magic ones need magic ones.
@ShadowGhost & @Ghostie
The Grav Mistress, Mistress of Gravity
If you have nothing useful to say, you have two choices: Say something useless or stay quiet.
Oh right, thankyou 
I got a couple of questions 'bout bases.
1: Can a tech item (like a tech teleporter) run on Arcane control and energy vice versa?
2: Can you have a base with Arcane control and Tech Energy?