ampdoc1 wrote:I just suggest this as a last resort check.
I worked on an amp several years ago, and went thru it,...checked it out, and gave it back to it's owner. He came back about a week later and said it was still doing the same thing. I and several others in the shop tried and tried, but could not replicate the noise. As it turned out, it was the way the guy was picking. He could do it on just about anywhere on the guitar, so we finally decided it was his picking technique that was causing the buzz. You might have some other players see if this happens, and/or change the guitar you are using if you haven't tried that already.
a'doc
Doc
Interesting you should mention this..I had a customer come in and play one of his guitars through one of my amps and noticed a slight buzz in the background..He thought it was the amp since he didn't hear it on any of his....He swore there was nothing wrong with the guitar..Turned out to be slight fret buzz..Raised the bridge a few turns took care of it..You can hear everything on these amps..Especially the earlier ones without OD trigger
Tony
HI
Fret buzz is a completly different sound. As i said in my earlier posts the noise was fuzzy, farty and much lower in volume as the sound of the guitar itself. A funny thing happened when i pluged in my RV-3 boss delay pedal in the loop... the delay only repeated the noise. I swear its true!
turbo5speed wrote:Also i tried different guitars but not different players.
turbo
I was by no shape or form trying to imply that fret buzz was your issue..I wouldn't presume..mainly pointing out the sensitivity of these amps
Side note: As you and many here have found out strange anomalies listed under Buzz/fizz/.crackle/nasty distortion etc whatever you want to call it (especially high gain amps)can be caused by a number of issues some as obvious as tubes (in your case) and some not so obvious like cold solder joints, poor ground connection or incorrect ground scheme,bad jacks, faulty transformers.cheap bypass caps, and even the placement of 1 wire (capacitive coupling/oscillation) or even 1 bad resistor or cap, I have heard them all here and on my bench.. I even had a chassis once that became slightly magnetic due to the powder coating process that served up a nice buzz and had to start over..In some cases this can be a real bitch to track down even with the amp in front of you much less trying to find it here...MANY posts here on the buzz/fuzz subject..So others know
Internal oscillation can spread through an amp like cancer and render a scope useless
GLAD you found it..Play LOUD!!
Tony
Last edited by talbany on Wed Apr 13, 2011 6:33 pm, edited 4 times in total.
" The psychics on my bench is the same as Dumble'"
turbo5speed wrote:Also i tried different guitars but not different players.
turbo
I was by no shape or form trying to imply that fret buzz was your issue..I wouldn't presume..mainly pointing out the sensitivity of these amps
Side note: As you and many here have found out strange anomalies listed under Buzz/fizz/.crackle/nasty distortion etc whatever you want to call it can be caused by a number of issues some as obvious as tubes (in your case) and some not so obvious like cold solder joints, poor ground connection or incorrect ground scheme,bad jacks, faulty transformers.cheap of faulty bypass caps, and even the placement of 1 wire (capacitive coupling/oscillation) or even 1 bad resistor or cap I even had a chassis once that became slightly magnetic due to the powder coating process that served up a nice buzz and had to start over..In some cases this can be a real bitch to track down even with the amp in front of you much less trying to find it here...MANY posts here on the buzz/fuzz issue..So others know
I swear its true!