I will try and get you the PN for the Traco converters I used. I actually have more on order including the +12 v version to try and replace both the +12 and +5 in my Intellivisions. Those things get so crazy hot that...yeah...I'm curious to see the results with my Sear's unit.
Oh..and it was actually thread at AA started by Mojoatomic that got me started on this. His post was that he had installed one of these on a 2600 and aside from the obvious reduction in heat since these switching regulators really don't create much if any he also stated that the RF video seemed to improve. I haven't tested it on any of my 2600s, but I can tell you that I had no noticeable interference on the 5200 or 7800 that I installed these on. However, both my 7800 and 5200's are also s-video modded and that was the only video output I tested with.
I also did this with my SMS and got pretty good results there as well. I did check it with s-video and composite, and again no interference that I could tell with that console either.
The only console I modded with a pair of these that I ended up taking them back out and putting the 7805s back in was my Sega Genesis. While they worked really well and the power consumption was reduced along with virtually no heat, they did cause noticeable audio noise that wasn't there before and occasionally some odd ticks would be heard in the audio as well. Since to me and the modifications I've made on my Genesis are mainly about getting the clearest picture and audio, I decided that the audio line level noise and ticks that were introduced, were not worth the power consumption savings. It was discussed that additional capacitors applied to both the input and output voltage lines on these could help reduce or eliminate the noise interference I was hearing on the Genesis, but I had other uses in mind for them by then. I also feel that the physical location of these converters in the Genesis and the proximity to the 2612 was the main reason. On the other consoles, the power regulation is further away from the audio circuit side of things.
Update here is the link to the +5 versions I ordered and installed. Allied doesn't have the +12 so I ended up ordering those and more +5 from Mouser for about the same costs.
And here is the +12 volt variant, but again they didn't have any stock at Allied so this is the link to them from Mouser:
Edited by CrossBow, 07 April 2017 - 05:25 PM.