well, I checked the power amp tubes with my probe and all are giving same bias value, around 37 mVolts. So i guess the tubes are okay. I sprayed all the sockets with electro cleaner and inserted an old tube a dozen times giving the sockets contacs some rubbing. Checked all wires and contacs and now ...

This is just the issue what Im having right now with my 2466. I just recently put in new power tubes and biased them. Also put in new tad preamp tubes. Seemed to be working ok for a few rehearsals. But just the other day I went to try out some new pedals on my own and realized that vm is lacking som...

To me this sounds like a blown power tube. Happened to me a while ago on an original 2550. For the comments regarding the build quality of todays marshall amps Im thinking does it make any difference if they are made in Vietnam/India by local people or in England by Vietnamese/Indian people. Its the...

Sadly I don't have the money to buy a 2555x. I just have to settle for my original '87 2550!

About diode clipping on jubilees; if you crank the clean side of the amp you get pure valve distortion without any diodes. And btw whats the real difference; amp with diodes or amp with a box of diodes?

Okay, its been a few weeks since I tried out that sdm2550x jubilee clone. To my taste it wasn't bad at all but also not that great what I expected. The biggest problem was the input gain, it really has to be on a higher setting to get a thick chunky sound like sj 2550 has. Both channels then have to...

I understand that he has just designed mods for amps. He doesnt sell any mod kits but he does sell he's zero loss fx loop kit. Btw, I do have one jube, 2550. I also used to have two 100w 2555's. So I know what to look for. I called the seller and he will bring the amp to me for a test drive. The amp...

Im about to buy one through a local musicians forum classifieds. Anybody have any info, experience on these? Seen or heard something?

Here's the link to Steve's site:

http://home.comcast.net/~mamp17/Jubilee%20Layouts.html

Little confusing?! 2061cx is 8 ohms, so just plug it in and set the 2266c ohms switch to 4 ohms and you're fine.

Tiboy wrote:Is there a noticeable sound difference between the 425A and 425B?

Basically they are the same. The A cab has two upper elements angled upwards and therefore sounds a bit brighter.

You can try to send signal from your VM to return of some other Amp ( which has loop) It can confirm your theory of faulty power section. I really can't come with any other suggeston right now. It seems like you've tried everything. Slight OT: I dont have hum on my 2466 but I do have it on my SJ 25...

In this pic you have the red arrows pointing at biast test point and trim pot. http://www.marshallroadhouse.com/viewtopic.php?f=1&t=17103&p=148106&hilit=2266+bias+test+point#p148106 Theres only one trim pot for both tubes. Thats why you allways need to buy a matched pair. Connect the black wire to c...

You can touch the chassis anywhere outside. Lift it out from the headcase grabbing it from the transformers. You can also hook up the dmm wires before you switch on the power. Im using set like this: https://www.dropbox.com/s/3lxq993z14mmvff/2014-06-02%2020.37.26.jpg Ive also made a tool By myself t...

Well, that's a nice stoner sound. Most likely works bettter within a band context. Pre-sabbath defenitely.

How I've been using my VM2466 preamp lately may sound weird. I got this idea from here from a post I dont recall now. But anyway, on LDR I crank my detail to 8-10 leaving body to zero. Thats it. I use TMB to adjust the sound a little to my taste. From MV I adjust the overall loudness I need. Im usin...