Login / Register
 
Tube Noob needs some help.
New Reply
Subscribe
maddnotez
Thread Starter
#1
23rd April 2012
Old 23rd April 2012
  #1
Gear nut
 
Joined: Jun 2010
Location: St. Louis
Posts: 121

Thread Starter
Send a message via Yahoo to maddnotez
maddnotez is offline
Tube Noob needs some help.

I recently have been getting ready to test out different preamp tubes for my guitar amp.

The V1 slot is the only one I have messed with. It takes 12ax7, I had a JJ brand, now chinese brand and love the difference. Now I want more options

My question is this. wtf is a 12ax7 jk

I see there are different types and I want to be very safe with my amp.

Im looking on ebay and see 12ax7, 12bz7, 12ua7, ect, ect many many others.


What do they all have in common? They start with a 12 and end with a 7.


Does all the mumbo jumbo in between mean anything at all to me???

If I toss in a 12bz7 instead of the 12ax7 is that going to work for me?

Someone please explin this
#2
23rd April 2012
Old 23rd April 2012
  #2
Lives for gear
 
Joined: Feb 2010
Posts: 5,476

Bill@WelcomeHome is offline
Myles Rose at guitarampblueprinting dot com is the best resource for what tubes to use where in a guitar amp.
__________________
"I believe that entertainment can aspire to be art, and can become art, but if you set out to make art you're an idiot."

Steve Martin

Show business: we're all here because we're not all there.

Resistance is not futile. It is voltage divided by current.
maddnotez
Thread Starter
#3
24th April 2012
Old 24th April 2012
  #3
Gear nut
 
Joined: Jun 2010
Location: St. Louis
Posts: 121

Thread Starter
Send a message via Yahoo to maddnotez
maddnotez is offline
Quote:
Originally Posted by Bill@WelcomeHome View Post
Myles Rose at guitarampblueprinting dot com is the best resource for what tubes to use where in a guitar amp.
got the same answer on rig talk, is that you ???


I read it and it did help....

But it didnt specify my question.

Can you use any 12xx7 tube?? as long as it starts with 12 and end with 7?
#4
24th April 2012
Old 24th April 2012
  #4
Lives for gear
 
Joined: Apr 2009
Posts: 1,400

johnnyc is offline
Vacuum Tube Basics

In a sense yes you can use any 12xx7 but it will not be ideal. Although they are pin compatible the characteristics of the tubes will be different, their gain, internal resistance, optimal bias point, etc.

My advice would be if the amp calls for a 12ax7 then try different brands of 12ax7 first, you will get a lot of tonal variety this way
New Reply Submit Thread to Facebook Facebook  Submit Thread to Twitter Twitter  Submit Thread to LinkedIn LinkedIn  Submit Thread to Google+ Google+ 
 
Thread Tools
Search this Thread
Search this Thread:

Advanced Search
Similar Threads
Thread
Thread Starter / Forum
Replies
synKro / So much gear, so little time!
3
Gaston69 / Remote Possibilities in Acoustic Music & Location Recording
29
skillzburn / Remote Possibilities in Acoustic Music & Location Recording
6
nerogtr / Remote Possibilities in Acoustic Music & Location Recording
7
sweetestsound / Low End Theory
4

Forum Jump

SEO by vBSEO ©2011, Crawlability, Inc.