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jimmybcool
10-11-2008, 09:01 PM
Hi all,

I have a Dr Z Maz Jr Reverb combo. Love it. Until tonight. I as playing and decided the volume needed to go UP. So, I cranked the volume knob on my guitar. Volume increased. Momentarily and then decreased by like 90% permanently.

Now I can still hear it working but the output is way down.

Any advice on where to start (tomorrow when I am off the scotch)?

Thanks for any help.
realityczech
10-11-2008, 09:06 PM
[quote=jimmybcool;4863433

Any advice on where to start (tomorrow when I am off the scotch)[/quote]

Start tomorrow when your sober.

Cheers!
jimmybcool
10-11-2008, 09:15 PM
Great advice. More scotch - no open amp :rotflmao
CitizenAudio
10-11-2008, 09:17 PM
Better yet, don't sober up. Drink until Sunday night, then get sober, then get the Doc's number on Monday morning.
jimmybcool
10-11-2008, 11:42 PM
I like scotch but I like to have a real life in the daytime so the scotch ends in about 15 minutes. :banana


Unless someone with a background says it is something simple like a tube I'm not doing anything anyway. As a trained graduate as an electronic tech who hasn't used an oscilliscope or soldering iron for over 25 years I know my limitations :rotflmao
guitarsnguns04
10-12-2008, 07:16 AM
always start with some other tubes if you got them...output tubes
jimmybcool
10-12-2008, 08:43 AM
always start with some other tubes if you got them...output tubes

Thanks. Now it's morning and I am sober I'll take her out and try that. I think I have some tubes that match. Need coffee to make the menory work.
zdogma
10-13-2008, 02:46 PM
I agree on the output tubes, that'd be where I'd start.
jimmybcool
10-13-2008, 04:26 PM
I agree on the output tubes, that'd be where I'd start.

I called Dr Z today. They said try the output tubes ;)

Now as soon as new tubes arrive in the mail I am heading out to the garage to fix it. I think it will be pretty easy.
shark_bite
10-13-2008, 06:07 PM
Yeah, probably tubes. This happened to me at an audition last week on my Deluxe. The ONE TIME I didn't have a backup in the car!
Jay Strange
10-13-2008, 07:24 PM
Wouldn't this be better titled " Amp problem"?? Seems unfair to DrZ who's amps are extremely reliable especially when not drinking booze....
jimmybcool
10-13-2008, 08:07 PM
I suppose Dr Z AMP problem is more accurate. Anyone opening the thread will rapidly get the probem and not hold it against them as it certainly isn't my intent to disparage them. I love my Maz Jr.

And I'd change it but don't know how so....


PS - I think the Dr Z amps are reliable even when I AM drinking booze LOLs
myles111
10-14-2008, 03:53 PM
As others have said .... a new matched set of output tubes.

EL84JJ in a medium output that meets EL84 design spec.
jimmybcool
10-14-2008, 05:08 PM
I have a matched set of EL84 JJ medium on order. :AOK Hoping to see them tomorrow. I'm not hurrting now, playing the Matchless and London 65. But I do like the Z. Want it BACK :dude
myles111
10-14-2008, 05:21 PM
I have a matched set of EL84 JJ medium on order. :AOK Hoping to see them tomorrow. I'm not hurrting now, playing the Matchless and London 65. But I do like the Z. Want it BACK :dude

As far as the London ... also one of my favorite amps on the planet.
jimmybcool
10-14-2008, 06:51 PM
As far as the London ... also one of my favorite amps on the planet.

Tell the truth I am still figuring it out. I watched a great video on a link from a thread here and learned a lot. But I am curious if it is possible to get into the good tone without killing your ear drums.