[Harp-L] Re: Fender Blues Jr. (tube types and placement- Bill Machrone link)

[B Boggs <ceudoazul@xxxxxxxxx>]

I moved to Hawaii when I was just out of High School.
I got into tubes there before I even played through an amp!
Sorry. Ouch.
 
An interesting discussion on tubes is had at:
 
 
http://home.comcast.net./~machrone/bjr/bjtubes.htm
 
Being enamored with neat things, I ended up with a belief that the tubes can make a difference. Sometimes a lot, sometimes a little.
Strong opinions.
By the way, I have used 12 AU 7 tubes in many amps that use 12 AX 7 tubes without any problems. 
Any objective comparison of various tubes, brands, etc. is helped if the tubes discussed can be tested to ensure they are good.
Lots of poor quality tubes are being sold and that is where a good tube will be significant.
Anyway, the article in the link above, by Bill Machrone, is very interesting.
 
Best,
Brian
 
**********************************...........................................................snow....::::::::::::::::
 
 
 
 
Message: 1
: Thu, 18 Dec 2008 09:39:45 -0700
From: "Rick Davis" <bluesharpamps@xxxxxxxxx>
Subject: Re: [Harp-L] Re: Fender Blues Jr Amps
To: "Mike Fugazzi" <mfugazzi67@xxxxxxxxx>
Cc: Harp-L@xxxxxxxxxx

The 12AT7 is designed much different than the 12AX7 or the 5751.  While it
does have lower gain, it has MUCH higher current output and
transconductance.  That means miles of clean headroom.  I tried the 12AT7
(not the Mullard) in V1 in several amps and hated it.

How is the Mullard different?

-Rick

On Thu, Dec 18, 2008 at 9:22 AM, Mike Fugazzi <mfugazzi67@xxxxxxxxx> wrote:

>  $28 at KCA NOS Tubes.
>
> Mike Fugazzi
> Vocals/Harmonica
> "The Mike Fugazzi Band"
> http://www.myspace.com/mikefugazzi
> http://www.youtube.com/user/mikefugazzi
>
>
> "Music should be healing; music should uplift the soul; music should
> inspire. There is no better way of getting closer to God, of rising higher
> towards the spirit, of attaining spiritual perfection than music, if only it
> is rightly understood."
> -Hazrat Inayat Khan
>
>  ------------------------------
> *From:* Rick Davis <bluesharpamps@xxxxxxxxx>
> *To:* Mike Fugazzi <mfugazzi67@xxxxxxxxx>; Harp-L@xxxxxxxxxx
> *Sent:* Thursday, December 18, 2008 10:20:09 AM
> *Subject:* Re: [Harp-L] Re: Fender Blues Jr Amps
>
> I didn't know that, Mike.  I'll try it.  But an NOS Mullard 12AT7 sounds
> kinda spendy.  How much?
>
> -Rick
>
> On Thu, Dec 18, 2008 at 8:48 AM, Mike Fugazzi <mfugazzi67@xxxxxxxxx>wrote:
>
>> The Mullard NOS 12at7 works great in V1.  It retains some of the punch of
>> a 5751 or 12ax7 when compared to how a 12ay7 can really mellow out your
>> tone.  In my research and experience, it is the only 12at7 that I would try
>> somewhere other than a reverb or phase inverter slot.
>>
>> I am using that tube in V1 on the "Refugee" and "Whippin Post" clips here:
>> http://www.youtube.com/user/mikefugazzi
>>
>> The amp I am using, an Allen Old Flame, has a master volume.  It was just
>> over half way up here.  When cranked, there is a lot more punch.
>>
>>  Mike Fugazzi
>> Vocals/Harmonica
>> "The Mike Fugazzi Band"
>> http://www.myspace.com/mikefugazzi
>> http://www.youtube.com/user/mikefugazzi