TR6 alternator

[Bandre Frank Contractor AMC/SCP <Frank.Bandre@scott.af.mil>]

The alternator (or some part of the charging system) on my 76 TR6 has been
staring to act strange (even for a Lucas system).  The system will normal
read about 13.5/14 volts with the engine running at normal speed.  Then, it
will drop to about 11 volts and stay there for 3 to 6 minutes.  Then, it
will go back up to 13.5/14 volts.   Not too noticible during the day, but at
night the headlights and panels lights will dim.  Any suggestions?

Frank

'76 TR6 CF57005U