https://archivedforum.beoworld.org:443/forums/30.aspxA Forum for Technical Help and Support on Bang & Olufsen products over 25 years old.enCommunityServer 2008 SP2 (Build: 31104.93)https://archivedforum.beoworld.org:443/forums/thread/356505.aspxTue, 31 Jan 2012 12:27:09 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:356505Blackrix0https://archivedforum.beoworld.org:443/forums/thread/356505.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=30&PostID=356505<p>A common problem with transfomers is hardening of the rubber bushes with which the transformer is mounted. Every transfomer has a bit of hum, but the bushes make sure that the humming won&#39;t get through to the cabinet. I would first check the rubber bushes.</p><div style="clear:both;"></div>https://archivedforum.beoworld.org:443/forums/thread/356493.aspxTue, 31 Jan 2012 11:39:19 GMT41a2a90c-3a1e-4bd3-b144-3883695a7f38:356493NevilleC0https://archivedforum.beoworld.org:443/forums/thread/356493.aspxhttps://archivedforum.beoworld.org:443/forums/commentrss.aspx?SectionID=30&PostID=356493<p>Transformer hum is my only problem but this reduces after a while but remains at low level&nbsp; &nbsp; . I have searched all posts and see reference to repair handbooks and capacitor kits, are they still obtainable and how do I go about getting them?&nbsp; Total system still good after all this time (1986) so I am reluctant to get rid of. Any advice would be welcome.</p> <p>Thanks in advance</p> <p>Neville C</p> <p></p> <div id="refHTML"></div><div style="clear:both;"></div>