How to clean DC at mains, ripple and RF/EMI.
febrero 17, 2018 6 comentarios
In Audiocircle forums I have a thread about how I had cleaned the DC at mains, ripple and RF/EMI too.
Información y Opinión
febrero 17, 2018 6 comentarios
In Audiocircle forums I have a thread about how I had cleaned the DC at mains, ripple and RF/EMI too.
Acerca de maty
Nauscopio Scipiorum
Más de cuatro años desde la última anotación.
Esta semana he actualizado el prototipo del DC Blocker con condensadores MUNDORF de 47.000 uF.
[IMG] http://maty.galeon.com/WP-imagenes/hum/ATL-Hi-Fi-DC-Blocker-prototype-inside-Mundorf-47000uF.jpg
[IMG] http://maty.galeon.com/WP-imagenes/hum/ATL-Hi-Fi-DC-Blocker-prototype-inside-detail-Mundorf-47000uF.jpg
El fin del mundo, los muertos vuelven de sus tumbas. Que susto me he dado cuando me ha llegado el correo de wordpress. Bienvenido.
Estos años he estado escribiendo en esa parte de Internet oculta a los buscadores y demás. Y en algunos foros de audio.
Sólo en inglés, harto de la red en español.
A clarification.
When I speak of cleaning the ripple I mean to eliminate the noise from the MAINS that is in the frequency band of the audio (usually < 200 kHz – 300 kHz in fast amps, where the amplifiers work internally and not the one we can hear < 20 kHz) and that is can not be eliminated by Würth 150 kHz ferrites and Schaffner RF/EMI filters.
Another thing is DC ripple.
Months ago, my TV system:
DCB (prototype, cheap EPCOS) + DCB + DCBx2
Until a week ago:
DCB (prototype, cheap EPCOS) + DCBx2
Now:
DCB (mundorf) + DCBx2
and just now is Monday night. The TV sound is much better than a week ago and better than months ago! TDT TV with sound from an AV Yamaha.
DCB and DCBx2 with much expensive and better EPCOS capacitors than the original DCB prototype.
In other words:
DCB proto with Mundorf is better than DCB proto + DCB.