Re: [Harp-L] changing tubes, biasing on Bassman RI

[Rick Davis <bluesharpamps@xxxxxxxxx>]

Yes, you should re-bias new tubes in Bassman amp, since it is Fixed Bias.

Yes, you should have a tech do it for you if you don't know how.  It only
takes a few minutes, but it requres that you hook leads to the high voltage
section of your amp, which can kill you if you do it wrong.

-- 
-Rick Davis
The Blues Harp Amps Blog
http://www.bluesharpamps.blogspot.com/



On Tue, Jun 8, 2010 at 4:08 PM, rosco <roscoharp@xxxxxxxxx> wrote:

> Hey list,
> I use a lot of electronics but don't understand any of it. I know there is
> A
> LOT of knowledge represented on this list...so:
> My question is about biasing my Bassman RI. I want to change power tubes
> -do
> I absolutely need to re-bias when I do this? Does it need to be done by an
> amp tech? -they are few
> on the ground around here.
> Thanks in advance - and it's good to see the list so healthy these days!
>
> --
> Later,
> Rosco
> www.maybeaugust.com
> www.myspace.com/maybeaugust
> http://www.facebook.com/home.php?#!/?ref=home
>