Search found 18 matches

by SgtPatton
Thu Nov 10, 2011 12:34 pm
Forum: Mark V
Topic: Your Opinion- Mark V over other Marks
Replies: 18
Views: 1901

Re: Your Opinion- Mark V over other Marks

I owned both Mark IV and Mark V. Ended up selling Mk V. I did a/b-comparison a lot. Mk V was versatile, but lacked some that magic what makes earlier Marks so special. It just didn't quite have that signature powerstage punch. I liked more MK V's clean channel thought. Especially tweed-mode was amaz...
by SgtPatton
Tue Oct 04, 2011 9:09 am
Forum: Mark V
Topic: Mark V channel changing problem
Replies: 5
Views: 1418

Re: Mark V channel changing problem

Thank you all for your answers. Popping sounds and loud hum occurred on all channels, even when master volume was at zero. I also checked possible ground loops, no help there.

I took it to maintenance. Hopefully they'll fix it.
by SgtPatton
Sat Oct 01, 2011 4:58 am
Forum: Mark V
Topic: Mark V channel changing problem
Replies: 5
Views: 1418

Mark V channel changing problem

Well, I finally decided to buy Mark V. However, I get a loud "pop" sound when I change channel. Does anybody have an idea, how to get rid of this? I'm using my midi rig to change channels. Chain is: Midi controller -> Voodoo Lab Control Switcher -> Mark V ext. switches. I don't have this problem whe...
by SgtPatton
Sun Dec 05, 2010 7:44 pm
Forum: Mark Series
Topic: The Mark IV thread....!!
Replies: 729
Views: 286823

Re: The Mark IV thread....!!

Can I disconnect the reverb tank from my Mark IV? How do I do it?
by SgtPatton
Sun Jul 11, 2010 3:14 am
Forum: Vintage Amps (Before 1991)
Topic: Mark IVa cooling fan problem
Replies: 2
Views: 569

Re: Mark IVa cooling fan problem

Thanks for the answer. Yes, it's the old Howard cooling fan, and it's about 20 years old now. So I think it would be better to just change it.

Do you know what would be the exact model, if I'd buy new Globe Motors cooling fan? Those are hard to find from here at Finland.
by SgtPatton
Sat Jul 10, 2010 3:14 am
Forum: Vintage Amps (Before 1991)
Topic: Mark IVa cooling fan problem
Replies: 2
Views: 569

Mark IVa cooling fan problem

I have a slight problem with my Mark IVa: When on full power, the amp's cooling fan is way too loud. I play mainly only at bedroom volume. When playing on tweed power, it's okay. I don't think it's broken in any way. I've heard, that A-version has louder fan than later version. It's that true? Has a...
by SgtPatton
Sun Jul 19, 2009 6:37 am
Forum: Mark Series
Topic: Mark IV problem
Replies: 2
Views: 511

Re: Mark IV problem

[quote="Boogiebabies"]Sounds like it's time for a cap job.[/quote] If it was the caps, shouldn't that resonating and buzzing electric noise occur also at tweed power? I get that noise only in full power-mode. Otherwise the sound is ok. When i opened the amp, there was no visual problems. Caps (those...
by SgtPatton
Thu Jul 16, 2009 10:22 am
Forum: Mark Series
Topic: Mark IV problem
Replies: 2
Views: 511

Mark IV problem

Hi I have strange problem with my MK IVa-medium head. When I turn power switch to full power, the amp starts to buzz and sizzle, like a huge power generator. I can play with the full power, but that buzz stays as a background noise. When I turn to tweed power, everything is okay. The sound of amp is...
by SgtPatton
Mon Apr 20, 2009 5:18 am
Forum: Mark Series
Topic: Mark IVa Circuit Questions
Replies: 3
Views: 685

Re: Mark IVa Circuit Questions

[quote] My IVa is knocking on 18 years old, so it's going to be time for a cap job pretty soon. I didn't see any bulging caps last time I was inside, but I know its coming.[/quote] Just curious, how do you know you need to change caps? How does it sound? I have a Mark IVa also from '92 and it has be...
by SgtPatton
Thu Mar 05, 2009 4:27 pm
Forum: Vintage Amps (Before 1991)
Topic: Mark IV lead channel sounds like it's dying?
Replies: 8
Views: 493

Re: Mark IV lead channel sounds like it's dying?

Let's borrow this topic... So I have a problem with Mark IV. It has started to sound muddy or flubby. I have to crank treble all the way up now...I don't think it's the tubes, 'cause they are quite new. Amp is from the early 90's. Maybe filter caps are going bad? There's no loss of distortion or vol...
by SgtPatton
Tue Mar 03, 2009 8:43 am
Forum: Mark Series
Topic: The Mark IV thread....!!
Replies: 729
Views: 286823

Re: The Mark IV thread....!!

My Mark IV has started to sound a little muddy or flubby (whatever you call it). Tubes are quite new, so I don't think that is the problem...Amp is from the early 90's. What do think? What could be the problem? Filter caps? Or something else?
by SgtPatton
Mon Jan 26, 2009 5:36 am
Forum: Vintage Amps (Before 1991)
Topic: Mark IV led problem
Replies: 5
Views: 344

Re: Mark IV led problem

Yeah, I pushed the leds and that solved the problem. Thanks for advice!
by SgtPatton
Sun Jan 25, 2009 5:08 pm
Forum: Vintage Amps (Before 1991)
Topic: Mark IV led problem
Replies: 5
Views: 344

Mark IV led problem

I have a little problem with my Mark IV's channel ledlights. I use my TC G-major's relay switches to change channels in amp. The problem is, that when I change to Lead channel, the led shines bright for a moment. After couple of seconds it turns darker. I hear some slight change in sound too. Howeve...
by SgtPatton
Mon Oct 20, 2008 8:05 am
Forum: Mark Series
Topic: The Mark IV thread....!!
Replies: 729
Views: 286823

I hear Ya! I have also A-model. Really, really nice sounds...And I don't have wife, so I can buy all the gear I can get BUHAHAHAA!!!
by SgtPatton
Thu Oct 09, 2008 3:53 pm
Forum: Vintage Amps (Before 1991)
Topic: Telling a Mark IV A from B
Replies: 16
Views: 1545

My Mark IV got two loops, one switchable, one normal. No satellite option. Serial is IV40XX...So what do you guys think? Is it A or B?