Noisy Etap2 machines

[dave robinson]

Sorry but this need addressing. I have read several posts where folks are suffering from noisy Etap2hw machines.
The blame seems to be on certain power supplies that we are buying, I bought the recommended one from Maplins and there is a constant buzz/hum from the amp when in use.
If I unplug the lead from the Etap and the noise goes away. Anybody any ideas ?
Other than that , this is the best sounding machine I have tried apart from the real thing (ie ESE Echomatic). The problem needs sorting quickly.

[dave robinson]

by Twang46 » Mon Aug 25, 2014 3:19 pm

There's no secret about the power supply I use Dave

http://www.misco.se/Product/Product.asp ... .3711594.2

I'll mail Piet (Echotapper) to see what the supply situation is in the UK & see if I can find a UK distributor.

Mine has a Europlug fitment (2 pin shaver style) which is solved by buying an adaptor from B&Q for example for a couple of pounds.

The filtered wall outlet will help as well but is not essential.

The original designer (Piet) made his design & the implementation of the Etap2hw available to all free under the "Open Source" banner.
Power supplies are to be sorted by the the purchaser of the parts/completed machine as it was supplied world wide.

I was not personally aware of the Etap2hw "noise" problem being as severe as you say yours is.

As I believe the models you use are supplied by Ecca (another assumption) you could speak to him to see if his units have any special requirements for power supplies.

Anybody else out there bothered with noise problems with their Etap2hw units ?

Dick.

[dave robinson]

Don't know what that's all about Dick - in a foreign language and even after entering the stock number still no good.

[Twang46]

Your right

I've just tried it & the site is down

Same product, different site yes it is a foreign site but google will translate for you.

http://www.edbpriser.dk/diverse-adapter ... 30879.aspx

Dick.

[dave robinson]

So was that one Danish ? No earth on the thing

[Twang46]

Class B devices don't need an "earth" Dave.

For AC power supplies

http://www.ebay.co.uk/itm/Replacement-T ... 20e6d78e9f

Can't guarantee it's "silent" of course

There are things that can be done if the noise is "mains ripple"

Any thoughts Ecca ?

Dick.

[dave robinson]

Thanks Dick, the one from Maplins wasn't cheap, about £20 I think. I'm going to try some top quality cables, it might make a difference, I'll let you know should I get a result.

[ecca]

I've not encountered any noise problems, this week is the first I've heard.
There will be some noise if valves are used but nothing untoward. My AC15 is noisy.
Positioning of guitars and units , lighting in rooms , power supplies, leads etc etc.
Many and various are the causes of noise.

[dave robinson]

I use high quality cables on stage as opposed to bog standard stuff in the house. Never get any noise there so I'll get them in out of my working box and see if there's an improvement . . . . .

[dave robinson]

OK I did that and not too much difference, however it did make a big difference removing the DeArmond 610 pedal. I've got it acceptable and I'm certain that the power supply is OK. Steve has a similar machine and has similar noise, it's like something needs earthing somewhere.