Your homemade tweaks?

I have used caulk to minimize vibration between capacitors(and other non heat producing components) and circuit boards(let it dry). A world of difference. Of course, chassis isolation(damping sheets,etc.)as well.

Jedinite24 Although I have used rope caulk on many projects like the ones you mention, the caulk I speak of is the builders caulk used for doors and windows, or kitchen and bath use, found at your neighborhood Home Depot. I use the squeeze tubes, rather than the tubes used with guns(you pay more for less this way, but the squeeze tubes are more manageable). This tweak has been around for many years. It is quite popular in use in speaker crossovers. The difference (to my eyes (dvd players) as well as my ears) is remarkable in every project and piece I modify.

Corazon, I apply caulk to the cap and the pcb, so that they are both "attached" together. Interestingly, I learned this many many years ago from a tech I knew who worked at Nakamichi, but later found that this was done on many speaker crossover assemblies. I have been doing it ever since, and I will tell you, it has been drastic in the improvements. The caulk is removable if you ever wish to remove it. It is critical that the caulk is given enough time to dry, as to not short anything out. I did have a Citation 12 blow up on me because I lacked patience(again, a very long time ago).

I have looked at the photos, and the caulk I prefer to use is not the rope caulk, but that in the tube. My recent projects have been using GE Silicone 11, clear, available at the Depot. Rope caulk never completely dries and is harder to remove. It also will capture dust. Rope caulk is very useful in the corners and such, though, but I prefer the tubed stuff all the way. My biggest success with rope caulk(besides room air conditioner seal)was the underside of direct drive turntable platters. However I need to point out that several turntables used a magnetic tape head underneath, so caution is advised.

Each and every step you take is audible. I agree, the transformer is a great place to isolate vibrations, as well as the boards themselves. Years and years of trial, error (HK12)and patience have brought things to another level. Many of my friends and associates agree. These tweaks are not snake oil.......