Re: [Harp-L] Power Tubes shot???

["Bob Maglinte" <bbqbob917@xxxxxxxxxxx>]

----- Original Message ----- 
From: "10hole" <10hole@xxxxxxxxxxxx>
To: "Michael Fugazzi" <mfugazzi67@xxxxxxxxx>; <harp-l@xxxxxxxxxx>
Sent: Thursday, January 06, 2005 3:15 PM
Subject: Re: [Harp-L] Power Tubes shot???


> It could be the power tubes. If the amp runs hot you can damage the 
> cathodes
> over time and it will lose volume and punch.
> A lot of times it will get muddy or very bassy too. Ask your guitar player
> if you can pull his tubes for 5 minutes to see if
> it solves your problem. If so, you know you need to buy tubes.
>
> Scooter

Hi,
Excellent point!!! If your amp isn't using the power tubes and/or the 
rectifier tube (if it uses one) that the amps calls for and/or hasn't been 
properly rebiased, the amp can be running far too hot or cold, which will 
have this effect. Preamp tubes are self-biasing, so there's no need to worry 
about this.

Sincerely,
Barbeque Bob Maglinte
Boston, MA
http://www.barbequebob.com
MP3's: http://music.mp3lizard.com/barbequebob/