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Re: Help with Atma-sphere MP3 and DC offset

Posted by Manuel (A) on May 23, 2005 at 21:32:04

In Reply to: Re: Help with Atma-sphere MP3 and DC offset posted by Lew on May 23, 2005 at 14:47:55:

Yes, this preamp uses just 2 6SN7 tubes, one for channel.
I have now 3 matched??? pairs, bought from 2 different and (I think) reliable sellers.
I bought the tubes as NOS, they look like new, and if I believe what appears to be the tests results, they test strong and the 6 tubes very close one to another.

When I swap the tubes, with some combinations the red DC light sometimes lights on the left or the right channel alone, or on both channels at the same time.

Well, if there is no danger maybe I must not worry.

I´ll try to "scientifically" swap the 6 available tubes to look for all the possible matched combinations.

I like how these Raytheons sound, both in the MP3 preamp and in the V1 possition in the M60 amps.

_____________________________________

I am from Galicia, so if you find me in a staircase, you won´t know whether I go up or down ...

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