Tink Oars wrote:
I have a wurlitzer 2300s wich has an anoying loud hum when a record is
playing. The hum does not change in loudness when I turn up (or down) the
wolume of the amplifier. It is stil there when I pull out the first tubes of
the amplifier.
I suspected the capacitor on the power unit so i took ik out and tested the
thing, it seemed to be o.k.

Replace it anyway and any other electrolytics.