ADA Depot - A Forum To Support Users of ADA Amplification Gear

Please login or register.

Login with username, password and session length
Advanced search  

News:

Please note "Depot New Registrations Temporarily Suspended" Please see discussions for how to register.

Pages: [1]   Go Down

Author Topic: New Tube Day  (Read 1498 times)

0 Members and 1 Guest are viewing this topic.

rnolan

  • Administrator
  • Superhero Member
  • ******
  • Online Online
  • Posts: 5998
New Tube Day
« on: Time Format »

So last week I noticed my MP-2 was fading (noticeably) after 15 mins or so, then come good then fade again.  Not completely fade, just loose some gain and edge.  So first suspect tubes.  The Mullards in my live MP-2 have done a whole bunch of miles over many years (10+) so not surprising they were getting tired.  Changed them for a new pair and tried tonight, no fade  :whoohoo!: , fixed.  And ordered another 6
« Last Edit: Time Format by rnolan »
Logged
Studio Rig: Stuff; Live Rig: More Stuff; Guitars: A few

Shibiwan

  • Newbie
  • *
  • Offline Offline
  • Posts: 29
Re: New Tube Day
« Reply #1 on: Time Format »

 :thumb-up:

What did you replace them with? Mullard long plates?
Logged
'97 Ibanez Jem 7VWH
'98 Ibanez Universe UV777PBK
'09 Masters Design EPiN4 bass
'22 Ibanez BTB805MS
ADA MP-1
ADA MP-2 ("new" toy!)
Roland GP-100
Digitech GSP-2101 Artist (LE)
Digitech Studio 5000
Behringer XR18
ADA MT-100 (spare amp)
Marshall 9200

On the repair/rebuild bench in various states of (dis)repair:
My trusty old '87 Charvel 475 SP
Piles of GSP-2101

rnolan

  • Administrator
  • Superhero Member
  • ******
  • Online Online
  • Posts: 5998
Re: New Tube Day
« Reply #2 on: Time Format »

Absolutely, I worked out 10 years ago (ish) that the Mullard long plates work fantastically (for me) in the MP-2, really nice 3D tube with plenty of gain  >:D .
Logged
Studio Rig: Stuff; Live Rig: More Stuff; Guitars: A few

Shibiwan

  • Newbie
  • *
  • Offline Offline
  • Posts: 29
Re: New Tube Day
« Reply #3 on: Time Format »

I like the sound of the long plates. I transplanted the vintage Matsushita long plates from my MP-1 to the MP-2. I believe they were copies of the old Mullards.
Logged
'97 Ibanez Jem 7VWH
'98 Ibanez Universe UV777PBK
'09 Masters Design EPiN4 bass
'22 Ibanez BTB805MS
ADA MP-1
ADA MP-2 ("new" toy!)
Roland GP-100
Digitech GSP-2101 Artist (LE)
Digitech Studio 5000
Behringer XR18
ADA MT-100 (spare amp)
Marshall 9200

On the repair/rebuild bench in various states of (dis)repair:
My trusty old '87 Charvel 475 SP
Piles of GSP-2101

rnolan

  • Administrator
  • Superhero Member
  • ******
  • Online Online
  • Posts: 5998
Re: New Tube Day
« Reply #4 on: Time Format »

There's a bunch of posts I did ages ago with my experience of the Mullards and why I like them so much.  One of the main things I noticed was they track really subtle changes in my fingering pressure which other tubes, including the originals don't.  But hey, tube choice is so subjective.
Logged
Studio Rig: Stuff; Live Rig: More Stuff; Guitars: A few

rnolan

  • Administrator
  • Superhero Member
  • ******
  • Online Online
  • Posts: 5998
Re: New Tube Day
« Reply #5 on: Time Format »

Well just as well I wasn't waiting for the new tubes I ordered/bought to arrive, lucky I had a pair hardly used in one of my MP-1s.  My express package is "delayed" for over a week now  :dunno: :crazy: .  It made it from Melbourne to Sydney.. and seems to have vanished.
Logged
Studio Rig: Stuff; Live Rig: More Stuff; Guitars: A few

rnolan

  • Administrator
  • Superhero Member
  • ******
  • Online Online
  • Posts: 5998
Re: New Tube Day
« Reply #6 on: Time Format »

Follow up to this post.  Turns out it wasn't the tubes fading.  Seems I have an issue in my Carvin DCM200L where the volume drops for a while then come good again  :facepalm: .
Logged
Studio Rig: Stuff; Live Rig: More Stuff; Guitars: A few

MarshallJMP

  • Superhero Member
  • ******
  • Offline Offline
  • Posts: 4702
    • marshalljmpmodshop.net
Re: New Tube Day
« Reply #7 on: Time Format »

Could still be a tube issue  ;D
Logged

rnolan

  • Administrator
  • Superhero Member
  • ******
  • Online Online
  • Posts: 5998
Re: New Tube Day
« Reply #8 on: Time Format »

Turned out to be gummy faders in my AM802 mixer, all the right panned channels and the right master (go figure).  Cleaned them all with isopropyl alcohol and it's now all good.  Well it didn't hurt to change the tubes, they had done quite a few miles  >:D .  I'm glad it wasn't a power amp issue after all.

And the new tubes turned up.  6 x long plate Mullards and I got in just before the world wide tube shortage, enough to be ok for a while.
Logged
Studio Rig: Stuff; Live Rig: More Stuff; Guitars: A few
Pages: [1]   Go Up