Power Supplies  We do not use the readily available low price capacitors that are in many cases 
counterfeit copies. They often don’t meet the high temperature and low ESR specifications required for 
reliable operation in the switching power supplies as found in a vintage Mac.  The small tight 
packaging of the LC power supply is hard on any capacitor and the cheap capacitors will not 
survive this harsh environment very long.  We only use high quality name brand components 
that are sourced from authorized distributors and guaranteed not to be counterfeit. They are 
more expensive and often harder to get as most modern manufacturing has transitioned from 
through hole components as used in the LC power supply to surface mounted technology.

Logic Boards: We have switched to recapping the logic boards with Tantalum capacitors instead of the original 
Electrolytic type that had so many failures.  The Tantalum capacitors consist of a solid pellet and 
don’t contain the corrosive electrolyte that eats up the logic board when they fail and leak (and they do).  
Tantalum capacitors also offer very high reliability but you need to upgrade the voltage ratings over 
the original capacitors.  We are using 25 volt rated capacitors on the 5 and 12 volt circuits to give you 

that extra reliability.