Author Topic: Noisy WT550 Traveler  (Read 142 times)

Offline scrumpymike

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Noisy WT550 Traveler
« on: July 10, 2018, 07:30:56 AM »
The amp I just bought through the normally reliable UK Basschat forum came with a fault.  Seems to work fine until I lower the volume on my bass(es) from from its default 10/10 setting.  This immediately results in a constant noise somewhere between a loud hum and a buzz, which disappears with the volume fully off or returned to max position.  My local amp repairer (not an Eden specialist but a very experienced guy from the old school) has narrowed the fault down to the input stage, though not the valve itself.  He says the amp actually works fine and is perfectly usable with the valve bypassed but I want it to work as Mr Eden intended.

Any ideas?
AMPS: Eden WTX264; Eden WT550 Traveler; Mesa D800.
CABS: Barefaced Super Compact Gen 3 (x2); Barefaced One10.
BASSES: Fender Rascal with custom body; Maruszczyk Elwood custom; Mensinger Cazpar custom; Gillett Contour S; Hohner The Jack.

Offline Rip Van Dan

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Re: Noisy WT550 Traveler
« Reply #1 on: July 10, 2018, 11:58:57 AM »
Hi Mike,

I'm presuming that you only have that problem with the WT550 and you can freely move and set your bass volume anywhere you like when playing through your WTX264 without any noise or crackling?.  If it's the same in other amps, then I'd be looking at cleaning the pot in your bass, but if it's only in the WT550, then that is where you need to be looking to fix it.

Another thing that will cause that is using bass an active EQ that has a worn out battery.  So if you are using an active bass, change the battery before doing anything else.

Before you go spend a bunch of money on a tech, a surprisingly simple thing that will often fix a host of hard to track problems is worth a try.  One of the things you need to do once a year is use whatever contact cleaner you have in the UK that is similar to the DeOxit5 (red label can) that we get in the US and clean ALL the jacks.  Since this is a used amp, I'd presume the guy didn't clean it and give the jacks a good cleaning before taking it to a tech.

Easy to clean.  Just spray some DeOxit5 or similar on a 1/4" plug and move it in and out of each jack 10 to 15 times.  That will clean off any corrosion that has accumulated on any of them. I typically give each jack a tiny squirt in each jack as well as on the 1/4" plug, but not sure that part is really necessary.  More of a habit of mine.

  Pay particular attention to the jacks you don't use.  The signal path runs through virtually all the jacks in the back of the amp and the ones that don't get used build up corrosion first because there's no jack moving in and out to knock any of it off.

  After cleaning every input and output jack on it, let it sit for 5 or 10-minutes to make sure all the cleaner that needs to evaporate has done so and then go ahead and power it up.  It's amazing how many times a good cleaning cures problems.  Then just clean it on an annual basis.

It would be really unusual for a tube to cause this kind of problem because the tube is in the impedance section operating within set parameters to add a bit of warmth to the sound.  So it's not really under any kind of stress that would cause it to wear out.  Plus when it goes, it usually turns microphonic and makes lots of open mic noise or a loud low hum or feedback sound.

In any case, give the cleaning a try first and then check back.  One of the moderators here, Armin (Bassman1968) is an absolute electronics guru and he can be really helpful in tracking down problems. 

Dan
« Last Edit: July 10, 2018, 12:15:32 PM by Rip Van Dan »
Rip Van Dan
Dan Gracia
'82 US-made Fender Jazz Bass with maple neck
5-string Rogue LX405 Pro (Surprisingly good "no-name" bass)
WT500/800 Highwayman (signature model)
D.N.S 410-8
Line6 X2-XDS wireless
=========
spares:
Eden RS400, GK BK250, GK 115 cab, acoustic B410 cab, Sunn Beta 202 (2x12)

Offline Paulinderwick

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Re: Noisy WT550 Traveler
« Reply #2 on: July 10, 2018, 12:16:31 PM »
You can get Caig's in the UK but it is expensive - much more so than when I bought some years ago - but a little goes a long, long way.  Left a battery in and corrosion - it fixes that too.
UK member, WT330, WTX260, 2 x EX112 (both 4 ohm), WTDI, and a Microtour as well as a Roland Super Cube Bass, Blackstar HT5, Fender Jazz '67, Fretless Fender Jazz '70, Burns Barracuda, Epiphone EB-0, Ashbory, Stagg EUB and guitars and ukuleles and a mandolin as well

Offline scrumpymike

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Re: Noisy WT550 Traveler
« Reply #3 on: July 10, 2018, 01:10:12 PM »
Thanks for your reply Rip Van Dan.  The noise is definitely specific to the Eden and happens with active and passive basses.  The amp is already with my tech but I'll make sure he gives all jacks a good clean.
AMPS: Eden WTX264; Eden WT550 Traveler; Mesa D800.
CABS: Barefaced Super Compact Gen 3 (x2); Barefaced One10.
BASSES: Fender Rascal with custom body; Maruszczyk Elwood custom; Mensinger Cazpar custom; Gillett Contour S; Hohner The Jack.

Offline Rip Van Dan

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Re: Noisy WT550 Traveler
« Reply #4 on: July 11, 2018, 12:35:53 PM »
Let us know how it goes Mike! 

Dan
Rip Van Dan
Dan Gracia
'82 US-made Fender Jazz Bass with maple neck
5-string Rogue LX405 Pro (Surprisingly good "no-name" bass)
WT500/800 Highwayman (signature model)
D.N.S 410-8
Line6 X2-XDS wireless
=========
spares:
Eden RS400, GK BK250, GK 115 cab, acoustic B410 cab, Sunn Beta 202 (2x12)

Offline scrumpymike

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Re: Noisy WT550 Traveler
« Reply #5 on: July 11, 2018, 04:29:22 PM »
OK, so here's how it's going!  My amp tech narrowed the problem down to the pre-amp circuitry around the tube, though not the tube itself.  He has a trade account with Marshal UK, who offer a replacement pcb assembly for a reasonable £50, and I agreed that a pcb swap-out would be the best way to go.  It's looking like I'll have my amp back within a week, serviced and repaired (including replacement master volume pot) for around £120 - which seems pretty good to me  :)
AMPS: Eden WTX264; Eden WT550 Traveler; Mesa D800.
CABS: Barefaced Super Compact Gen 3 (x2); Barefaced One10.
BASSES: Fender Rascal with custom body; Maruszczyk Elwood custom; Mensinger Cazpar custom; Gillett Contour S; Hohner The Jack.

Offline Paulinderwick

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Re: Noisy WT550 Traveler
« Reply #6 on: July 11, 2018, 04:54:36 PM »
Excellent - normally with a PCB you expect a repair bill close to the cost of a replacement - good luck and report back!
UK member, WT330, WTX260, 2 x EX112 (both 4 ohm), WTDI, and a Microtour as well as a Roland Super Cube Bass, Blackstar HT5, Fender Jazz '67, Fretless Fender Jazz '70, Burns Barracuda, Epiphone EB-0, Ashbory, Stagg EUB and guitars and ukuleles and a mandolin as well

Offline Rip Van Dan

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Re: Noisy WT550 Traveler
« Reply #7 on: July 12, 2018, 06:26:40 PM »
Great news Mike!  Time for some scrumpy!

Dan :)
Rip Van Dan
Dan Gracia
'82 US-made Fender Jazz Bass with maple neck
5-string Rogue LX405 Pro (Surprisingly good "no-name" bass)
WT500/800 Highwayman (signature model)
D.N.S 410-8
Line6 X2-XDS wireless
=========
spares:
Eden RS400, GK BK250, GK 115 cab, acoustic B410 cab, Sunn Beta 202 (2x12)

Offline scrumpymike

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Re: Noisy WT550 Traveler
« Reply #8 on: July 13, 2018, 12:25:18 PM »
Great news Mike!  Time for some scrumpy!

Dan :)
It's always time for some scrumpy  :D
AMPS: Eden WTX264; Eden WT550 Traveler; Mesa D800.
CABS: Barefaced Super Compact Gen 3 (x2); Barefaced One10.
BASSES: Fender Rascal with custom body; Maruszczyk Elwood custom; Mensinger Cazpar custom; Gillett Contour S; Hohner The Jack.

Offline scrumpymike

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Re: Noisy WT550 Traveler
« Reply #9 on: July 19, 2018, 03:16:43 PM »
Pleased to report that I collected the amp today following its repair and service by Peter Searle at V Amps.  All good - it's fully functional and the only noises it makes now are the ones I want to hear :D  Just had a quick try-out thru one of my Barefaced Super Compact Gen 3 cab's and it sounds as good as anything I've ever heard!  Can't wait to gig it thru both SCG3s as that's going to be quite something.  Total cost of £120 included a full check over and replacement parts, namely master volume pot and pre-amp pcb assembly.  Pete and I were deeply impressed by the fact that Marshall UK were able to supply the pcb ass'y within a couple of days at a very reasonable price.  I'm well pleased with this but it still has to pass the gig test.
AMPS: Eden WTX264; Eden WT550 Traveler; Mesa D800.
CABS: Barefaced Super Compact Gen 3 (x2); Barefaced One10.
BASSES: Fender Rascal with custom body; Maruszczyk Elwood custom; Mensinger Cazpar custom; Gillett Contour S; Hohner The Jack.

Offline Rip Van Dan

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Re: Noisy WT550 Traveler
« Reply #10 on: July 19, 2018, 07:52:41 PM »
Great news Mike!  Let us know how the gig goes.

Dan
Rip Van Dan
Dan Gracia
'82 US-made Fender Jazz Bass with maple neck
5-string Rogue LX405 Pro (Surprisingly good "no-name" bass)
WT500/800 Highwayman (signature model)
D.N.S 410-8
Line6 X2-XDS wireless
=========
spares:
Eden RS400, GK BK250, GK 115 cab, acoustic B410 cab, Sunn Beta 202 (2x12)

Offline Bassmann1968

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Re: Noisy WT550 Traveler
« Reply #11 on: Today at 02:50:49 AM »
Great news!
And good to hear, that there are still some repair guys out there that can do the job and for a reasonable price.
Rock on!
Armin

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Offline scrumpymike

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Re: Noisy WT550 Traveler
« Reply #12 on: Today at 09:29:30 AM »
Thanks guys!
AMPS: Eden WTX264; Eden WT550 Traveler; Mesa D800.
CABS: Barefaced Super Compact Gen 3 (x2); Barefaced One10.
BASSES: Fender Rascal with custom body; Maruszczyk Elwood custom; Mensinger Cazpar custom; Gillett Contour S; Hohner The Jack.

Offline TobiasMan

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Re: Noisy WT550 Traveler
« Reply #13 on: Today at 09:48:53 AM »
Hmmm,  Nice services.  I wonder how long it would take to get a pre-amp pcb assembly here in Canada???? 
A few days, I think not!  ::)
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NXT5 EUB, MTD 535 Fretless, Tobias Killer B-6, 72 Fender Precision
WTX1000N, WP100 Navigator, QSC PL230, WT500, WTDI, Fender Bassman 10
410XLT, 410XST, Generic bin with 2 15" EVs