Console Repair/Mod CenterQuote from: SmokeMonster on 07/26/2015, 02:30 PMThat said, the negative feedback from thesteve and Keith makes me less enthusiastic about doing this to NEC consoles.
I wouldn't be concerned with their comments. The Turbo Duo systems generate a fair amount of heat with the two stock 7805s. Try leaving your finger on one of the heat sinks for a minute after the console has been on for a while! 
Even Tim Worthington sells switching DC/DC converters on his site. They are modern drop-in replacements for the old 7805s. He has been incorporating switching DC/DC in a number of his products such as the Famicom-PA board and soon to be released 2600RGB. Not to mention that a switching DC/DC converter will be a requirement for the HiDefNES.
I think Tim's ability to create a competent component video circuit
, as well as his other spectacular products (AV-DRIVER ) and adoption of switching DC/DC converters in his designs trumps a few bits of conjecture. Also, if you're not using one of his AV-DRIVERs for RGB modding a Hu6260 based system, you're doing it wrong. 
