Where can i get a grub screw for the stylus arm for a stanton str8-30 deck

I assume you mean to adjust a pick up cartridge stylus installed in a Stanton T.50 turntable, in which case the instructions are in this link

https://images-na.ssl-images-amazon.com/images/I/A17trkVZLGL.pdf

Anything from 2 grams to 5 grams. Depends what you want.

From Stanton. Or from a stereo repair facility.

the screw in under so you need the right tools

Does decks are too bad build, i gave them away

Hi, Stylus City can supply a stylus for your Stanton. Styluscity@gmail.com

If you're close enough and there is very little ambient noise in your listening room it would be possible to hear the airborne vibrations of a stylus in a groove. Be aware that IT can also 'hear' and react to other airborne and surface vibrations in the real world. Welcome to the analog world.

I doubt that excessive tracking force (within reason) would make LP playback audible. If you were playing an LP on an old Victrola Talking Machine that uses a sharpened railroad spike as a sytlus, well, maybe.

For a manual, go to http://www.retrevo.com, register and download it and many other manuals for free. I used >> Stanton STR8-150 << as a keyword.

The manual refers to a "tone arm and cartridge settings" section that I can't see.

To adjust the static balance of the tonearm precisely within its 2-5 gram limit (see the specs for your cartridges) get yourself a Shure SFG-2 (a search on Retrevo shows several for under $20) and follow its directions. You will have to make slight adjustments to the tonearm counterweight to achieve the desired tracking force.

These units are ground inside the decks. If you pop all the screws and remove the bottom, you'll notice where the RCA wires are hard wired into the unit, there is a small ground that comes out and attaches to several places inside the deck. Make sure this isnt severed or has a loose screw somewhere along the way. That should fix your problem, or give you insight to what may help.

See what type of cartridge is installed in the arm. Manufacturers use common cartridges in turntables, such as Stanton, Shure etc. Detach the head shell from the arm (it usually slips right off via a locking ring and four-pin mini plug) Look for the manufacturer and model number on the cartridge. No need to remove it from the head shell. On most modern cartridges, the stylus (as they are called, rather than the needle) simply slips off and on. No need to remove the entire cartridge (via screws) and re-align it. In fact, many DJs bring a set spare cartridges and styli on a gig, already mounted in head shells, and simply interchange them as needed. When you have the make and model of the cartridge, go to Radio Shack or use their website to order a new one...or  two. Or go to Google and enter "phono stylus" as your search term. You will find reasonably priced styli for nearly every cartridge imaginable. I operate 50 year-old turntables and am able to find replacement cartridges and styli on line. Ebay also has a number of listings, by make and model of the cartridge. When the new stylus arrives, observe how easily the old one comes out of the cartridge- usually pull and slide - and slide the new one in. Re-insert the head shell on the arm, tighten the locking ring, and you're good to spin!

It could be a problem with the cartridge/stylus, since you have eliminated the mixer as a source of the problem, it must be in the turntable. The only place for it to come from would be the stylus/cartridge or the wires in the tone arm, or the pre-amp that those wires go to, or some bad solder in the output circuit being used. My guess would be the cartridge and/or stylus, it is taking much more contact and friction than anything else which could cause it to be intermittent. Please understand that I can only guess at your problem since I do not have the unit in front of me to check myself, so I can not be certain of your problem.

I hope this helps,
Dave