Parts for Dynavector 501 Tonearm


I've been using a Dynavector 501 Tonearm for about 15 years now.  I have really enjoyed using it, but the arm lift mechanism has worn to the point it is inoperable. I really need parts, or a good machine shop to make the parts to renew the lift.

Do any of you know where I could get parts for it, or a machine shop (close to me in Puget Sound area of Washington State?)

Thanks, and regards,

Dan

Ag insider logo xs@2xislandmandan

Well, gentlemen, it turns out the 507 arm lift is much larger in diameter than the 501 arm lift. I was going to attempt to remove the support body trom the arm, but I would have to disassemble the entire arm. A few years ago I would have done it, but at my age, and stroke-effected body, I chose not to.

I was able to mount the arm lift support assembly in my drill press vise, and clamp the vise down. I then used a 5/8" Forstner bit to drill the hole out to fit the 507 arm lift.

It's a tight fit, but it fits and works beautifully, and it's a great feeling having my arm and turntable working perfectly again. Thank you Dover, for suggesting trying out the 507 arm lift. I'm grateful.

Best regards to all, happy vinyl listening!

Dan

@islandmandan 

Thats great news.

Fyi - I fully rebuilt my 501 - including rewire and changed the angle of the sub arm to facilitate Baerwald rather than Stevenson, and still keep ing the cartridge dead straight in the headshell ( this is critical because the cartridge needs to be at right angle to the vertical bearings to avoid torsional force on the cantilever ).

I had to recalculate all the overhang, pivot to spindle and offset angle.

Never again - it was a drama I could have done without.

Dover, I sure understand and appreciate what you've done on your 501 arm. That is some precision work you've done, and for it to be sucessful, you had to have done a very good job.

Doing that kind of work on your system is very satisfying and rewarding, something to be very proud of. Heck,  I'm even proud of you!

I once sent my arm to a guy that was going to rewire it with silver, but when I got it back, it was still disassembled, and the wiring was so screwed up I decided to take it apart and rewire it myself. I just ordered some Cardas tonearm wire, tore it apart, took apart the crap he'd done, and rewired it. I had the arm almost completely apart,but when it was done, it was done right, and it has been working perfectly for over a dozen years, other than the arm lift.

By the way, I was a lifelong heavy equipment operater, not a machinist. I've always enjoyed taking things apart and making them work better, so it's kind of fun, at least when all goes well, but it doesn't always go the way you want it though, 'eh?

Needless to say, that guy didn't get a reccomendation from me!

They are a very nicely engineered and built tonearm, though.

Thanks and regards,

Dan

In a bit of a similar fix with a newly acquired 505 that came w 1 x small sub arm counterweight. Have some emails back and forth w Dyna USA w factory not having any 505 parts. Have inquired about using 507 counterweights….. no answer yet as I expect Japan involved. @dover , et al any help appreciated. I am so enamored w sonics w a NOS Signet TK-9 that I am contemplating pulling my Kuzma CAR-40 off the Triplaner to try on the 505….. but no way to balance it short of blue tac and quarters….

Lew - thx for the inputs on headshells.

Any help appreciated 

Best in music

Jim