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NEC TG-16/TE/TurboDuo => TG/PCE Repair/Mod Discussion => Topic started by: choijimmy on December 19, 2015, 04:45:06 PM

Title: Voltage regulator 2405 replacment
Post by: choijimmy on December 19, 2015, 04:45:06 PM

Hi,

  In mega cd version 1, the voltage regulator is NEC 2405. Can it be replaced by common 7805?
By reading the spec, they are very close ( eg, 1A, output 5v,etc.. )

Anyone has idea?

Thanks!

Title: Re: Voltage regulator 2405 replacment
Post by: thesteve on December 20, 2015, 10:43:45 AM

if the heatsink is floating or grounded yes, as the only differences are the 7805 is more rugged and the 2405 has the tab insulated

Title: Re: Voltage regulator 2405 replacment
Post by: choijimmy on December 20, 2015, 12:15:43 PM

Quote from: thesteve on December 20, 2015, 10:43:45 AM

if the heatsink is floating or grounded yes, as the only differences are the 7805 is more rugged and the 2405 has the tab insulated

thesteve

Thanks thesteve