Did you only apply power, or did you turn it on? If the former, you might be OK. If the latter, what happened?
I wouldn't think just applying 26 volts would damage the supplies, if they were off... If you apply current limited (250mA) 7 volts, what happens? :-) Current before turn-on should be quite low and the receive current listed in the manual, after turn on. Higher current probably indicates damage someplace.
(If damage was done, it probably won't be made much worse by the?gentle prodding above, or so I think...)
Good Luck!
73, Paul -- AI7JR
Paul - AI7JR