Matthew otm
― niels, Monday, 8 May 2017 07:43 (seven years ago) link
Cable ordered. Will update and let you all know how it goes. Thanks for your advice.
― pickety third (stevie), Tuesday, 9 May 2017 10:51 (seven years ago) link
Sorry to be dense, but do you mean there is a hum with no cable plugged in to the amp's phono inputs at all? or if the cable is plugged in to the amp, but the other end is not plugged in to the turntable?
You're not being dense, I'm not describing it very clearly. But definitely the latter.
Also, I just plugged my old Ariston turntable - which currently has no power source plug attached but also never had any hum issues with the amplifier, so I'm guessing was already grounded somehow - into the amp and there was no noise, so hopefully the amp is actually fine and it was the lack of a ground/the shitty DIN-to-RCA connector that was to blame.
― pickety third (stevie), Tuesday, 9 May 2017 11:30 (seven years ago) link
Fingers crossed Stevie!
― attention vampire (MatthewK), Tuesday, 9 May 2017 12:02 (seven years ago) link
Hello!
Got a cable with a ground attached and the hum is GONE! Mostly.
But playing a fela record just now, the horns seem *ghostly, like they're not there, which was not the case with my old cartridge. So something is wrong in the headshell, I think.
I reckon I just need to bite the bullet and get a professional to fix it.
― pickety third (stevie), Thursday, 11 May 2017 12:39 (seven years ago) link
Damn. If it was the bottom end missing I would suspect the channels were out of phase. With the headshell, if there are four leads plugged in at the back, it might be worth checking the correct wire is on the correct pin if you have any way to do that. If it was phase, it would be the pair for one channel swapped over.
― attention vampire (MatthewK), Thursday, 11 May 2017 19:18 (seven years ago) link
unfortunately the philips uses a weird proprietary sled system inside the headshell, rather than wires.
so close, though.
I'm beginning to see why most people are fine with an ipod and computer speakers.
― pickety third (stevie), Thursday, 11 May 2017 20:34 (seven years ago) link
Well - the only remaining DIY advice is to check that the pins connecting the cartridge are clean and that there's nothing somehow shorting between them (and maybe check where the wires are coming out of the tone-arm if that's visible), also that the stylus cantilever is free of anything touching it and isn't bent or whatever. So close.
― attention vampire (MatthewK), Thursday, 11 May 2017 20:54 (seven years ago) link
the photo on the left looks like it has a solid coat of oxidation -- elbow grease, Deoxit, repeat until pristine. Ground screw/horseshoe connect, as well.
― bodacious ignoramus, Wednesday, 17 May 2017 00:23 (seven years ago) link
...and remember, those plugs have two connecting surfaces ea -- outside and center pin.
― bodacious ignoramus, Wednesday, 17 May 2017 00:25 (seven years ago) link