Become a Supporting Member


Go Back   The Gear Page > The Gear > Amps and Cabs

Notices


Reply
 
Thread Tools Display Modes
  #16  
Old 12-25-2012, 05:06 PM
nova nova is offline
Member
Feedback Score: 1 reviews
 
Join Date: May 2010
Posts: 30
Lots of great advice, thanks everyone. One last thing, where can you buy a tube? Would GC have that kind of thing or should I go onto this thing called the "Internt" to buy one?

Merry Chrismas,
Mike
Reply With Quote
  #17  
Old 12-25-2012, 05:11 PM
bluesjuke's Avatar
bluesjuke bluesjuke is offline
Disrespected Elder
Feedback Score: 5 reviews
 
Join Date: Feb 2005
Location: Gretchen's House, Bluesland, TX.
Posts: 23,160
Most decent Shops will if you need fast.
Are you using a 12ay7 (my favorite) in the V1 (first position)?
Reply With Quote
  #18  
Old 12-25-2012, 05:50 PM
dshobe dshobe is offline
Silver Supporting Member
Feedback Score: 31 reviews
 
Join Date: Oct 2010
Location: Mile High
Posts: 1,603
Look in the parts emporium for tubes long term. I'm going to suggest taking it to a tech. It's worth it. Have them show you how remove and reinsert the tubes. It's not tough, but you don't want to break anything.

Honestly, rotate in a circular motion? Wow.
Reply With Quote
  #19  
Old 12-25-2012, 06:08 PM
Oatie's Avatar
Oatie Oatie is offline
4 Holer 4 Life Member
Feedback Score: 0 reviews
 
Join Date: Sep 2009
Posts: 1,329
If you tap on each pre-amp tube while the amp is running, a bad tube will let you know right away when you tap on it using a wooden chop stick or pencil. Tap each tube with the volume on 3-4, it will be easy to find the bad tube as it will scratch and make sounds.

Also try using a 5751 tube in V1, it will raise the gain from 44 to 70% by a simple tube swap. It's like adding an early break-up at lower volumes. To get that ZZ Top tone use the 5751 in V1. You can safely use these tubes to raise/lower the gain.

Pre-amp tube gain numbers.

12AX7A/7025/Ecc83 (100)
5751WI (71)
5751 (70)
CV4024/12AT7WA/6201 (61)
12AT7/ECC81/6679 (60)
6072/6072A (45)
12AY7/Ecc82 (44)
12AV7/5965 (41)
5814A/12AU7A (21)
12AU7/Ecc82/6189/5963 (20)
Reply With Quote
  #20  
Old 12-25-2012, 06:38 PM
DrewB DrewB is offline
Senior Member
Feedback Score: 0 reviews
 
Join Date: May 2007
Location: Independence, MO
Posts: 558
Rotate, not twist! Do we need a youtube video to demonstrate this?!
__________________
There is no substitute for Sound Pressure Level.
Reply With Quote
  #21  
Old 12-25-2012, 08:13 PM
bluesjuke's Avatar
bluesjuke bluesjuke is offline
Disrespected Elder
Feedback Score: 5 reviews
 
Join Date: Feb 2005
Location: Gretchen's House, Bluesland, TX.
Posts: 23,160
ro·tate
/ˈrōˌtāt/

Verb
  • Move in a circle around an axis or center: "the wheel continued to rotate"; "a rotating drum".
  • Cause to move around an axis or in a circle.
  • ro·ta·tion(r-tshn) n. 1. a. The act or process of turning around a center or an axis: the axial rotation of the earth.
    b. A single complete cycle of such motion.

Synonyms
revolve - turn - spin - wheel - whirl - swivel - gyrate




No.
Reply With Quote
  #22  
Old 12-26-2012, 01:42 AM
nova nova is offline
Member
Feedback Score: 1 reviews
 
Join Date: May 2010
Posts: 30
I was trying to identify the tube with a wood spoon, but none of them so much as peeped at me. In fact I'm unable to reproduce the issue at all. Go figure. Could my fussing with the tubes squared it away? Is it an issue that I should expect to see resurface?

Thanks
Mike
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -6. The time now is 04:45 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Copyright ©1999-2014, The Gear Page, LLC, Brian Scherzer
All rights reserved.
Header Graphic by NetThink 21