when I switch on the amp, ten second later (more or less) I listen a "BLOOOP" in the speakers, I use a CCS DN2540.
Question:
1 is normal?
2 how to eliminate, change to 10m45s.
Question:
1 is normal?
2 how to eliminate, change to 10m45s.
The "BLOOP" is only in one channel and one time per switch on, later don't listen any noise, I am going to test this weekend need to measure all to be sure that all is running in the optimal voltage-current conditions. maybe one of the dn2540 is bad, my b+ is 400v at the begin. I am going to change the DN for the 10m45s.
DN2540
400v Source
1k D
R220 G
give 11mA 200v to the EF184 biased at 2.6v
DN2540
400v Source
1k D
R220 G
give 11mA 200v to the EF184 biased at 2.6v
Maybe an oscillation finding it's frequency and sweeping thru audio band on it's way up (or down)?
I often have different weird sound after turn on when my circuits oscillate. They disappear usually after the oscillation is dealt with.
I often have different weird sound after turn on when my circuits oscillate. They disappear usually after the oscillation is dealt with.
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