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How to Fix DC Offset and Transformer Hum In Your …
https://www.pooraudiophile.com/2015/03/how-to-fix-dc-offset-and-transformer.html
At $299 the Humbuster was a bit expensive but would do as its name implied—get rid of the transformer hum in your audio equipment caused by DC offset. The Humbuster III would get slightly warm in the process, but did the trick. An important aspect of the PS Audio solution was that it was not current limiting.
How to find and fix hum in 3 easy steps – PS Audio
https://www.psaudio.com/ps-how/how-to-find-and-fix-hum/
Yes, to Steps 1 and 2 If the answers are yes to questions one and two, it’s likely that one of your sources (like a CD player, turntable, video feed), is the source of hum. Remove that piece from the receiver, amplifier, or integrated and the system hum should now be gone.
Getting rid of transformer hum | Audioholics Home …
https://forums.audioholics.com/forums/threads/getting-rid-of-transformer-hum.3879/
Buzz is caused by any number of things - input leads close to mains wiring, power transformer or bridge rectifier (and associated wiring), bad or no earth connection, loops (they can cause buzz as well as hum), the list is almost endless." Hums tend to be ground induced, while buzzes are more electronic.
Amplifier transformer hum: what to do? - Audio & Video …
http://forums.audioreview.com/amps-preamps/amplifier-transformer-hum-what-do-5239.html
Transformer hum is caused by eddy currents in the transformers core. Transformer cores are made up of many thin layers of steel and the edy currents cause these layers to vibrate back and fourth. The reason the hum increases with volume is because more current is flowing through the transformer and the eddy currents are incresed.
amplifier - How to filter hum from transformer for audio ...
https://electronics.stackexchange.com/questions/218350/how-to-filter-hum-from-transformer-for-audio-rectifier
The toroidal type mains transformers do not have a lot of magnetic leakage. The hum you hear is more likely at 100Hz. The hum that remains with no input connected can be reduced by increasing the filter capacitor but adding a proper voltage regulator (linear or switched mode) would help more.
toroidal transformer hum | diyAudio
https://www.diyaudio.com/community/threads/toroidal-transformer-hum.295736/
Audio1Man said: From what you describe is it Mechanical Hum? This can be caused by several things. 1. Disconnect all secondary windings. Power it ON. 2. Is it still humming? If so you need to find out if the core is in saturation or just the windings are loose. By measuring the excitation currents (TX not connected to any other circuits).
Amplifier Transformer Hum - forum.audiogon.com
https://forum.audiogon.com/discussions/amplifier-transformer-hum
Sometimes the hum is caused by "DC Offset". The AC power quality is off a little, and the transformer has to work harder to get the right power to the amplifier or other component. It will vibrate more when it has to work harder. A power regenerator/ voltage corrector would probably fix this kind of hum. (PS Audio, Equi=tech, etc.)
How to fix Radio tube amp Transformer Hum Buzz …
https://www.youtube.com/watch?v=dtOwewfqucI
Here is a generic method for repairing a vintage power transformer that has excessive noise caused by loose iron core lamination's. I utilized DEFT to dampen...
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