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Post by thatstatuemoved on Jan 4, 2023 18:57:15 GMT -7
I recently decided I wanted to start gigging my Z-lux some. It has seen very little use, maybe played some in my music room, but not much. Fired it up and started practicing and started getting buzzing, crackling. Some of the lower notes were fizzy. WTH? So not knowing what to do, I replaced ALL the tubes with new ones. Fired it up and still getting some of that. I am thinking it is not a tube issue which it is a lot of the time. Does anyone have any suggestions and or remedy's? With the cost of a retube, I sure do not want to resort to that again. Mine was made in 2015 and requires the older tube scheme with the nos 6201 in V3 which I have. Hard to find some of the tubes Doc has listed for this model. Can other ones be used? The last set of tubes I got were from eurotubes. They have a package for the lux and that is what I got. It does not have the 6201 or the mullard for V1 and the two sovtek tubes. I put in the suggested tubes that Doc recommends as I had some of those, but still having issues. Any info will be appreciated. Thanks--Jester
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Post by Norrin Radd on Jan 5, 2023 7:20:45 GMT -7
You should re-post this in the amps troubleshooting thread.
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Post by Ridgeback on Jan 5, 2023 7:51:45 GMT -7
Did you replace the tubes one at a time or all of them at once? If the amp has been sitting around unused for a while, did you clean all of the input\output sockets with something like Deoxit? Still sounds like a tube problem the way you describe it. Good luck getting it back in shape.
Edited to add: Don't forget to clean the reverb out\in connections also.
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Post by LT on Jan 5, 2023 8:27:05 GMT -7
Have you checked the speaker? I had a bad Eminence brand-new out of the box once.
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Post by thatstatuemoved on Jan 5, 2023 11:06:43 GMT -7
You should re-post this in the amps troubleshooting thread. done--thanks!
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Post by thatstatuemoved on Jan 5, 2023 11:07:57 GMT -7
Did you replace the tubes one at a time or all of them at once? If the amp has been sitting around unused for a while, did you clean all of the input\output sockets with something like Deoxit? Still sounds like a tube problem the way you describe it. Good luck getting it back in shape. Edited to add: Don't forget to clean the reverb out\in connections also. All at once and of course in a hurry. Did not do the deoxit. I am gonna do that and thanks for the info.
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Post by thatstatuemoved on Jan 5, 2023 11:09:31 GMT -7
Have you checked the speaker? I had a bad Eminence brand-new out of the box once. I did check speaker and I think it is okay. My take on a speaker is either it works or doesn't. Is that a valid thought? Thanks for the info. Jester
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Post by frankie on Jan 6, 2023 13:51:36 GMT -7
Have you checked the speaker? I had a bad Eminence brand-new out of the box once. I did check speaker and I think it is okay. My take on a speaker is either it works or doesn't. Is that a valid thought? Thanks for the info. Jester A speaker can exhibit distortion and other various noises before it goes completely. This isn't totally out of the equation. I would advise you to take a video or audio clip of the noise and send it to Don at repairs@drzamps.com. Please give him a few days to respond, but he will have a better idea of the issue if he is able to hear the exact noise that it's making.
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Post by thatstatuemoved on Jan 7, 2023 20:17:03 GMT -7
Thanks everyone for the input--I appreciate it. Adios
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Post by DRZ on Jan 8, 2023 6:11:09 GMT -7
Jester before you say good-by let me take a stab at this issue without the help of hearing the problem which generally helps define the source. This is a nearly 8 year old amp that hasn't been used and been stored for some time. The Z Lux contains the most options and circuits that can be installed in a point to point amp design. I could not shoe horn any other options into that amp with moving to a PC board design. This being the case, and you did state , that by replacing all the tubes the problem was diminished but still there. That tells me it may be oxidation inside the pins of your tube sockets , and/or oxidation on your input jacks , or reverb cable and two button FS connections. All of these stated concerns can cause exactly what you have. Replacing the tube set probably did clean to a small degrees any oxidation in your sockets. More attention is needed to fully make for solid connections to eliminate crackles and unwanted note distortion. I know this has been stated by others in this thread, but I must repeat the suggestion. Purchase some Detoxit and spray the shxt out of said areas.
If that doesn't help a nice recording of the issue sent to Don in repairs will go a long way to finding your problem.
Understand the amp didn't have this problem be for you stored it, right? So it developed this issue while not being played , this is what makes me think it is just an oxidized connection that needs cleaning.
Z
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