Hi, all magnetic pickups are grounded, prevents hum, except low impedance pickups. Taff.
Actually . Not all mag pickups need grounding . Many humbucker pickups you can use straight to Jack because they were designed to "buck the hum" hence the name " HUM-BUCKER" . Other shielded / treated pickups can also pass the test . Some are much more effective , even labeled "silent ". Not to mention Some folks would rather not have their guitars grounded due to stage / shock hazards etc .. Many Pro musicians play un-grounded guitars , or with a ground switch to use if needed.
I can't speak for the delta pickup , because i have never used them . but your best bet is to try it without , if it is hummy . try grounding it . usually this only involves running a wire from the back of the volume pot to the bridge (if metal ) . but remember . lights , other appliances , radios, other machines on the same line ... etc . can all have an effect on hum . sometimes just plugging your amp in a different room makes a huge difference .
ps .. your replies are not showing up . please click the "html editor" in top right corner befor you post . (its a site glitch )
Karen, I think you’re asking if you need to ground the the pickup to the Bridge? Yes, a good idea, it’s actually standard practice whether it needs it or not, even in brands like Gibson, PRS,Jackson that are known for humbuckers? But the Delta pickup is a single coil pickup, so yes you will ground it to the Bridge or anything touching the strings? Good luck with your build :)
Thanks for all the advice. I am putting it in a licence plate guitar. We will see how it sounds.