Bottlehead Forum

Bottlehead Kits => S.E.X. Kit => Topic started by: Jimb0 on June 17, 2021, 05:26:00 PM

Title: Static noise, one channel
Post by: Jimb0 on June 17, 2021, 05:26:00 PM

I'm getting a lot of static on the left channel but when I switch the tubes the noise moves to the other channel. Would this be an indication of a microphonic tube? I sanded both tube pins with 1000 grit sand paper and cleaned it with WD40 but nothing changed. Voltages checked fine and I will try resoldering all the joints.

Title: Re: Static noise, one channel
Post by: Paul Birkeland on June 18, 2021, 05:41:49 AM

If the tubes are fresh out of the box, I would leave the amp on for a day or two and let the tube cook in.  Often noise like that will go away with 50 hours of run in time.

Title: Re: Static noise, one channel
Post by: Jimb0 on June 18, 2021, 05:48:38 AM

Thanks PB I will try that