Bottlehead Forum

Bottlehead Kits => Mainline => Topic started by: Phippers on September 30, 2021, 12:50:15 AM

Title: Tube noob question
Post by: Phippers on September 30, 2021, 12:50:15 AM

Hi,

So I'm a noob with tubes - this being my first tube amp - so apologies for the dumb question.

Just looking at the 6C45Pi's on my new Mainline and the left hand one glows brighter than the right hand one. The left has two bright "spots", the right has a bright "spot" and a barely glowing "spot".  (please see pictures).

Is this normal?

Thanks,

Paul.

Title: Re: Tube noob question
Post by: Paul Birkeland on September 30, 2021, 04:59:17 AM

That's completely normal and technically none of the heater would need to stick up for the tube to function properly.

Title: Re: Tube noob question
Post by: Phippers on October 01, 2021, 12:27:32 AM

Thanks Paul,

Good to know.

Best regards,

Paul.