ampage
Tube Amps / Music Electronics
For current discussions, please visit Music Electronics Forum. The sunn still shines online!

ampage archive

Vintage threads from the first ten years

Search for:  Mode:  

Coping with the stray-field monster

7/5/2000 9:14 AM
DominikCoping with the stray-field monster
Hi there,  
I have a problem with my Dumple preamp clone. I use an American Standard Fender Strat and I get some nasty stray-fields when I play next to the clone. The noise gets better when I move around some, but even at a distance of 3m I get those darn noises when in overdrive mode. The chassis is all-steel (3mm) and the tranny is situated inside the 19" chassis. The tranny has no shielding covers and it is bolted to the chassis by means of those star-shaped washers and security washers plus scre and nut. I have the same phenomenon when I use a different Strat. Switching to in-between pickup position helps a lot. The noise is the almost gone. I know that this problem is fairly normal. But I wonder what I could do to reduce the amount of background noise. The amp itself is almost noiseless when I use a CD-player for signal purposes. Seems like the tranny emits a strong electromagnetic field. Maybe I could shield the tranny with mu metal or aluminum??  
 
Grateful for any input on this!  
 
Best Regards,  
Dominik

 
Replies:
Ray Ivers Dominik,On page 4-1... -- 7/5/2000 11:19 AM
Stephen Conner Single-coil pickups are stupidly se... -- 7/5/2000 12:31 PM