Mark III problem please help!

[hippo1666]

Hi, i'm a new guy in this forum.I just bought a MARK III Red stripe a month ago from ebay.But i notice that the gain in my Mark III is not gainy enough and the reverb start making noise when i turn the knobs pass 1, i thought is the preamp tubes problem so i decieded to order a retube kit from eurotubes.But after i change all the tubes the problem still there.

Could someone please tell me what problem is it and should i send to electrical shop to check it.(i living in malaysia and there is no mesa dealer here)

Thanks

 

[Boogiebabies]

Can you please elaborate more on the problem. It could be a dirty or noisy Vol. 1 or lead master. The EQ pot could have the same problem or a bad ground, cable or reverb tank. Also, even though you put new preamp tubes in does not free you from the whammy of actually putting in a new bad tube. I cannot tell you how many time this has happened to me.

Try disconnecting the reverb and see if the problem is still there. Then get the pots cleaned and lubricated.

 

[hippo1666]

Hi,the reverb start making noise and distort when i turn the reverb control over 1.5.. I will try to check it out 1st. BTW thanks for ur help.

 

[Boogiebabies]

No problemo.

 

[hippo1666]

Hi, i disconnect the reverb cable and connect it again but the problem was still there my sound get loud and distort when i turn the reveb knob over one.Beside, i can't find enough gain in my mark III..will it be the preamp tubes problem? but i had changed the new preamp and power tubes which i order from eurotube.Can someone help?

Thanks

 

[TigerStrat]

I had the same exact problem on my MkIII "no"stripe for several years (always too cheap to get stuff fixed). Then I found a solution online. Crazy as it sounded, I tried it and the problem cleared right up. Only thing is, now I can't seem to google up the page again! The transience of the internet strikes again.

Here's what I remember of it, and flame away if I make an electronically dumb statement. All I know is that this gave me my spring reverb back, after many years of having to rely on a cheesy outboard digital reverb....

Problem: somehow the little transducers that the springs hook onto have worked their way out of alignment.

Solution: take the tank out of the amp and hold it in front of you with an underhand grip at each end, so that the top of the tank is face-up. Now vigorously shake the tank forward and back, so that the springs inside are shaking side-to-side. Do this for about 5 seconds or so, and what should happen is the transducers will be worked back into proper alignment. Plug the tank back in and try it out.

 

[Marshall_Fascist]

Volume I acts as the basic gain/output for all three channels, Keep in mind that you can also pull the mid knob(ry2) in conjuction with the lead channel for more saturation/gain. I also find that the amp opens up when the master is on 3 or above.
I dont know how much different a red stripe is from a green, But I get sick heavy master of puppets style distorion with buttery ease. Dose your amp have the graphic EQ?

 

[hippo1666]

Ya..it built in with graphic EQ..i will try to tweak around it and see 1st..Thanks