LiveVideo.com photo: 6550WE Sovtek, 6SN7 RCA VITOR NOS

6550WE Sovtek, 6SN7 RCA VITOR NOS

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6550WE Sovtek, 6SN7 RCA VITOR NOS

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Posted May 7, 09 by syeful76
tq bro
will try this.

Posted May 7, 09 by LukeSkywalker
It is possible. It keeps the originals for plus some days and later it returns GE to confirm.

Posted May 6, 09 by syeful76
it happen both 2 cannel.Now when i change the tube to 6sn7 to the original come vith amp no hummm noise from speaker.Do u thing my tube 6sn7 from GE are shorten the life?tq

Posted May 6, 09 by LukeSkywalker
Important: after the inversion of the valves, has adjusted the bias binding again.

Posted May 6, 09 by LukeSkywalker
It can be some valve of power. It happens in the two canals? If it will be in only one, it changes V1 and V2 with V3 and V4 to see if the side noise dumb. The tension, it has that to be the correct one not to shorten the useful life of the valves.

Posted May 3, 09 by syeful76
hi
why my yaqin mc100b when swich on the power the hummm noise come from speaker?It is because the over voltage or some of the capasitor down/leack?tq