Problem:

About 3 weeks ago I noticed for the first time ever a brief overvoltage problem.  It went away and happened again briefly.  On my flight home yesterday evening I noticed the alternator was offline (instrument was showing a discharge light and voltage was below 12).  I cycled the switch and the alternator came back online.  A few more times the discharge light would come on, then start "charging" again with no input from me.  Is this hopefully a simple "I need a new alternator problem" or something more sinister.  I have a 60 amp alternator.  Would I do better with a 100amp alternator if it needs to be replaced anyway?  I have no heated pitot or deice, etc.  What type of alternator would you recommend, as this one isn't very old..maybe 2 years or so.  Thanks in advance.

Steve Reeves
Glasair 1FT 38SR