Welcome, Guest. Please login or register.
Did you miss your activation email?
May 01, 2024, 11:36:36 PM
Home Help Search Login Register
News: Ceriatone Forums are up and running!!!
 
Guests please register
Note: If you want to help you can donate to keep the forums alive.



Do you want to advertise on this forum ? Send me a private message.



Amplified Parts
+  Ceriatone Forum
|-+  Ceriatone
| |-+  Overtone
| | |-+  Puzzling hum when not touching the strings
« previous next »
Pages: [1] Go Down Print
Author Topic: Puzzling hum when not touching the strings  (Read 8206 times)
captainbackfire
Full Member
***
Offline Offline

Posts: 113



View Profile
« on: September 25, 2012, 06:15:04 PM »

Hi!

I've been exchanging emails with Nik and calls with an amp tech. No luck so far

I'm getting buzz and hum when I'm not touching my Strat(non defective electronics) loud and just the same on clean. I know this phenomenon is normal if its relatively quiet on clean especially. I've taken advice from Nik and my tech to test different places/ venues/ power sources with grounding. No luck.

- I get a very very low volume low midrange hum as I turn the "ON" switch It comes from the speaker "Whoop-mmmmm" as you flip the switch. Its like lighting a stove whoop and then there's an elecrical sounding hum. It's not coming from the PT itself but from the speaker
- The hum (low midrange "zzz") creeps in as I lower my guitar volume knob from about 9-2 and then completely vanishes to quietness as you turn it down to 0 of course.
- The amp is quiet when the cable is unplugged.
- Is quiet with an mp3 player
- Buzz gets louder when I lean on the wall or stand on the floor w/o footwear.
- WHen the guitar vol is shut off, and you turn up the volume and master on the amp, the buzz hum is very audible (is it normal since the knobs are maxed out?)
- On most of my gigs and rehearsals on it so far it was quiet. Maybe because I am actually standing on those times...
- Its really not a big deal I actually thought it was normal. Is it?

Thanks in advance you guys!
Logged
captainbackfire
Full Member
***
Offline Offline

Posts: 113



View Profile
« Reply #1 on: September 25, 2012, 06:19:07 PM »

Ive swapped tubes since then so no change there

My tech facilitated the first power up with no problems. The hum was there but he ignored it that time.

My lead dressing was well thought off.

So far no "oops" found inside as I check things out especially the power board, output etc.
Logged
plasticvonaband
Hero Member
*****
Offline Offline

Gender: Male
Posts: 747


Pickin and Grinnin since 1989


View Profile WWW
« Reply #2 on: September 25, 2012, 10:25:30 PM »

Hate to say it, but it's most likely the guitar, bad (or non existant) ground within your amp or where you have it plugged in, or your guitar or power cable. Sounds like a ground is loose somewhere in the guitar, or maybe reversed, or the main ground in your amp is loose or miswired, or the grounds in your playing location is faulty. There *shouldn't* be any hum other than normal 60hz or 50hz hum from the single coils, even with the knobs maxed. hiss yes, hum, no.
Logged

Overdrive is like peanut butter. Some like it crunchy, some like it creamy.
Bluesmaster 50 2x12 combo and some guitars.
captainbackfire
Full Member
***
Offline Offline

Posts: 113



View Profile
« Reply #3 on: September 26, 2012, 05:45:52 AM »

I see. I should do a big checkup of everything especially the ground in the amp again then and let you know. I've confirmed that my guitar is non defective, ive checked thoroughly and its quiet in any other amps. THanks Gregg.
Logged
gigs
Newbie
*
Offline Offline

Posts: 36


View Profile
« Reply #4 on: September 27, 2012, 12:26:40 AM »

I agree... check the ground on the guitar. Could be a bad ground on your guitar.
Logged
captainbackfire
Full Member
***
Offline Offline

Posts: 113



View Profile
« Reply #5 on: October 04, 2012, 05:05:58 AM »

You guys are right.

So I had my amp tech over to check on a couple of things. Apparently my pickups are faulty. We narrowed it down to my neck and bridge pickups which hums when you touch the pole pieces. It may not be noisy on other amps as he explained. He said something like the OTS is high gain. Is that true? High gain?
Logged
plasticvonaband
Hero Member
*****
Offline Offline

Gender: Male
Posts: 747


Pickin and Grinnin since 1989


View Profile WWW
« Reply #6 on: October 04, 2012, 10:16:44 PM »

if it hums when touvhing the pole pieces, sounds like the leads are swapped on your pups, or the ground at your guitar's jack, or both. My Dano has no more hum through the BM than with my other amps, and my Strat didn't either, in fact, possibly a lil less due to the better filtering on the BM compared to my ol Sovtek and Ampeg.

Gregg
Logged

Overdrive is like peanut butter. Some like it crunchy, some like it creamy.
Bluesmaster 50 2x12 combo and some guitars.
captainbackfire
Full Member
***
Offline Offline

Posts: 113



View Profile
« Reply #7 on: October 05, 2012, 02:15:23 PM »

I see. We indeed checked everything on the guitar.  I guess he pointed out that nothing was really wrong except for the pickups. Maybe its time to finally upgrade to lollars or something.
Logged
dannysgrandpa
Jr. Member
**
Offline Offline

Gender: Male
Posts: 64


Life is good here! God is good...all the time!


View Profile WWW
« Reply #8 on: October 24, 2012, 09:15:47 AM »

I had a good bit of noise from my strat, but I did a good shielding job on it and now it is as quiet as can be!
Your tech should be able to do this and it will greatly improve the tone, as well as the gain output of the guitar.
It will make the strat useable with any amp at any volume. It will sound big, fat and powerful.
Cheers!
Logged

Make a joyful noise...that is smooth, tight and punchy! I believe that God likes tube tone.
Certified IPC Master Trainer: 610G, 620C, J-STD-001G/Space, 7711C/7721C. Hands on soldering trainer, inspection trainer and Electrostatic Discharge instructor.
captainbackfire
Full Member
***
Offline Offline

Posts: 113



View Profile
« Reply #9 on: October 26, 2012, 06:10:14 AM »

I had a good bit of noise from my strat, but I did a good shielding job on it and now it is as quiet as can be!
Your tech should be able to do this and it will greatly improve the tone, as well as the gain output of the guitar.
It will make the strat useable with any amp at any volume. It will sound big, fat and powerful.
Cheers!

YOu know what I actually put a new alder body to this strat wich has that copper shilding paint. I grounded it and voila! Yes sir is quiet as it should be. I wouldnt kknow how much the tone improved or if the new body just changed the tone a bit. It's now a bit more trebley.
Logged
Pages: [1] Go Up Print 
« previous next »
Jump to:  


Login with username, password and session length

Powered by MySQL Powered by PHP Powered by SMF 1.1.12 | SMF © 2006-2009, Simple Machines LLC Valid XHTML 1.0! Valid CSS!

CeriaTone Forum is not afiliated with Ceriatone Amplifications. The CeriaTone and name, logo and related trademarks and service marks, owned by CeriaTone. , are registered and/or used in the U.S. and many foreign countries. All other trademarks, service marks, and trade names referenced in this site are the property of their respective owners.