Wurlitzer 2700/2810 humming/buzzing/noise problem

geschrieben von - posted by cjmvanempel 
Wurlitzer 2700/2810 humming/buzzing/noise problem
17.03.20 18:11
Who has experience with the following?
After selecting and during the play of a single, both my Wurlitzer 2700 and my 2810 emit a substantial buzz or humming by the boxes. Actually out of the blue. This was previously not the case.
After the single is put back, the humming / buzzing stops. I have tried several things to fix the problem but nothing has yet led to a solution. Who has an idea how this is caused?
Re: Wurlitzer 2700/2810 humming/buzzing/noise problem
19.03.20 12:24
In most cases of humming during playback is coused by poor earthing/mass contacts.
Best to check plugs and other electrical connections on proper seating and contact.
Also check seating of tubes.
Re: Wurlitzer 2700/2810 humming/buzzing/noise problem
20.03.20 03:59
Thank you for your reaction. I’ve found the issue.
The (sound) condensator (4,7uf) on the smallest box failed.
I’ve placed a new one. Hum is gone.
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