I am looking for some shielded earth leads for my SUT.
Anyone got any recommendations?
I am looking for some shielded earth leads for my SUT.
Anyone got any recommendations?
Main system : VPI Scout 1.1 / JMW 9T / 2M Black / Croft 25R+ / Croft 7 / Heco Celan GT 702
Second System : Goldring Lenco GL75 / AT95EX / Pioneer SX590 / Spendor SP2
James you don't need shielded earth leads. The lead itself will be at earth potential so shielding from any noise is not required.
Just use a standard piece of multi strand wire, 7/0.2 or 16/0.2.
I love Hendrix for so many reasons. He was so much more than just a blues guitarist - he played damn well any kind of guitar he wanted. In fact I'm not sure if he even played the guitar - he played music. - Stevie Ray Vaughan
Thanks Alan, it was just that I was moving the earth lead around to get a good position and as soon as it went near the amp it picked up hum, moving it away reduced it.
This made me wonder if it was the earth lead that was introducing hum into the SUT and if so would a shielded earth lead solve the problem.
Main system : VPI Scout 1.1 / JMW 9T / 2M Black / Croft 25R+ / Croft 7 / Heco Celan GT 702
Second System : Goldring Lenco GL75 / AT95EX / Pioneer SX590 / Spendor SP2
Sounds like you have an earth loop and a poorly shielded mains transformer in the amplifier.
Barry
Main system : VPI Scout 1.1 / JMW 9T / 2M Black / Croft 25R+ / Croft 7 / Heco Celan GT 702
Second System : Goldring Lenco GL75 / AT95EX / Pioneer SX590 / Spendor SP2
I have a similar problem with my 25 but not my 25 Basic. I've minimised hum by moving the preamp away from t/t.
Cheers, Jeff