D Dune Pro Structural Eng, Am Metal Basher Messages 143 Jul 29, 2010 #41 Malcom the humming may be the windings in your balast has come loose. I would say change them to the new stuff.
Malcom the humming may be the windings in your balast has come loose. I would say change them to the new stuff.
malcolm & Clementine the Cat Messages 9,735 Location Bedford UK Jul 29, 2010 #42 Thanks - one of them did fail recently and it's been a lot quieter since then - I'll bung some new ones up.
Thanks - one of them did fail recently and it's been a lot quieter since then - I'll bung some new ones up.
