RE: Re: Another A-100 hum question

[WDeffner@t-online.de (Wolfgang Deffner)]

Frederick wrote

>>Here in Sweden we have some B-3 that where imported from USA to
solve the Hz (We use 50) problem some people mounted an L-100 motor with an
belt drive that was engaged after the first spring damper. These organs have
a lot hum in the background of the note.

My CV has been converted this way, but the belt drive is put before the first 
spring damper. There is a lot of hum in the upper notes (near the motor) which 
seems to be caused by the magnetic field of the motor. Is there any possibility 
to shield the motor?

Wolfgang Deffner