My tube amp power supply is buzzing away Help

The hum is probably from too much DC in the power line (DC Offset). Blame your power company. While you can issolate the hum with "anti-vibration stuff"; fixing the power is the real solution.

The various power regeneration, balanced power, power issolation devices that use their own transformers to produce clean power will probably do the trick. However, the cheaper ones might hum themselves since they'll be getting the same lousy outside power (LOL!!).

Never tried the PSA Hum Buster, but I assume it works.

Power "conditioning" or "filtering" will not work.

The unit is plugged into a BPT 2. I am going to try this. Open up the unit and place the transformer on four cut strips of hard rubber. I will then tighen down the bolts using the rubber as both a washer and underpad.

I called Pete from Mcalister and he feels this will do the trick. This power supply is said to be very quiet. Seems mine had been dropped during shipping as the underside is bashed in about 1 inch under the transformer. All else looks fine, but the bottom metal plate in bent and I am pretty sure this fix will work.

I will write a full review of this amp soon. But I will say this now. It is easily the best buy I have ever run accross in high end audio. $995 new and I paid $600 used. One of the very best amps I have had the pleasure of owning. Does not take a backseat to any amp I have owned costing up to $9500. Pure and simple.

I will let you know if this fix works. Pete said there is no need to buy that expensive stuff that comes in sheets. Just use the rubber from a $5 black bunge cord. I like that!

Before you do anything, try tightening the transformer down. You may find you need to go no further. And, if the design is not great, look into fixing THAT first.

Trying these other products is good, but unless you first batten down the hatches, you are surely putting a band - aid on the real issue, and your results will not be maximized.

There are a few things that might work, first off check the nuts and bolts connecting the power supply to the chassis as I had a bit of hum in an amp and by tightening the nut just a tiny bit did away with the hum completely as I think over time they work there way loose. One other thing as mentioned above is the Humbuster. If the hum is in the component and not coming through the speakers it's most likely dc on the line.

I fixed the issue by buying a $5 hard rubber bunge and cutting into strips and placing it under the transformer. I then tightened the whole thing down.Now it is much more quiet. Cant hear it from where I sit.

Neat way to qiet down transformers.

Bill