View Full Version : Interesting Tonearm project - Arm tube fabrication
Magna Audio
12-03-2015, 17:44
I was recently asked to fabricate a tonearm tube to replace one that was damaged during modification to a different headshell socket.
Working from a tech drawing of the arm and the old arm tube
https://uploads.tapatalk-cdn.com/20171005/0fa747e1d14e539c483ecdf79cf66d83.jpg
I fabricated a new tube - turned to fit the arm holder and internal mounting bush.
Arm tube bent and end drilled and cut for head shell socket.
https://uploads.tapatalk-cdn.com/20171005/8fca473068a2401408b096a4a1923b63.jpg
https://uploads.tapatalk-cdn.com/20171005/018f932d404e1b2ac2206fe2aa09c535.jpg
The finished article was then spray painted to match the original - socket re-wired with copper litz tonearm wire
https://uploads.tapatalk-cdn.com/20171005/644d1db987778e65e10f3a93776fb741.jpg
Fun project that has kept Serge's AEG Telefunken TRS9000 record deck going.
Excellent workmanship displayed there Steve. Well done!
Audio Al
13-03-2015, 05:15
Nice repair , It seems you are very talented , I am similar , I class myself as " All the tools and no talent " :lol:
Magna Audio
13-03-2015, 08:15
Thanks guys - It was a fun project.
The deck in question is a real beast, 10 inch arm.
http://www.stefanopasini.it/images/AEG-9000-1-Web.jpg
Heavyweight engineering! Nice to keep it looking original and using the armbase / bearings etc.
awkwardbydesign
13-03-2015, 08:57
I was recently asked to fabricate a tonearm tube to replace one that was damaged during modification to a different headshell socket.
Working from a tech drawing of the arm and the old arm tube
http://i727.photobucket.com/albums/ww272/speedysteve7/hifi/Magna%20Audio/Capture.jpg (http://s727.photobucket.com/user/speedysteve7/media/hifi/Magna%20Audio/Capture.jpg.html)
I fabricated a new tube - turned to fit the arm holder and internal mounting bush.
Arm tube bent and end drilled and cut for head shell socket.
http://i727.photobucket.com/albums/ww272/speedysteve7/hifi/Magna%20Audio/Magnetic%20sleeve%20made%20to%20fit.jpg (http://s727.photobucket.com/user/speedysteve7/media/hifi/Magna%20Audio/Magnetic%20sleeve%20made%20to%20fit.jpg.html)
http://i727.photobucket.com/albums/ww272/speedysteve7/hifi/Magna%20Audio/New%20armtube%20following%20curve.jpg (http://s727.photobucket.com/user/speedysteve7/media/hifi/Magna%20Audio/New%20armtube%20following%20curve.jpg.html)
http://i727.photobucket.com/albums/ww272/speedysteve7/hifi/Magna%20Audio/WP_20150216_001.jpg (http://s727.photobucket.com/user/speedysteve7/media/hifi/Magna%20Audio/WP_20150216_001.jpg.html)
http://i727.photobucket.com/albums/ww272/speedysteve7/hifi/Magna%20Audio/WP_20150216_002.jpg (http://s727.photobucket.com/user/speedysteve7/media/hifi/Magna%20Audio/WP_20150216_002.jpg.html)
The finished article was then spray painted to match the original - socket re-wired with copper litz tonearm wire
http://i727.photobucket.com/albums/ww272/speedysteve7/hifi/Magna%20Audio/WP_20150220_002.jpg (http://s727.photobucket.com/user/speedysteve7/media/hifi/Magna%20Audio/WP_20150220_002.jpg.html)
Fun project that has kept Serge's AEG Telefunken TRS9000 record deck going.
That certainly looks adequate!
Thanks guys - It was a fun project.
The deck in question is a real beast, 10 inch arm.
http://www.stefanopasini.it/images/AEG-9000-1-Web.jpg
Heavyweight engineering! Nice to keep it looking original and using the armbase / bearings etc.
That’s a wonderful looking deck – reminiscent of the EMT 950, but with a longer, and possibly better, arm. What is the cartridge?
Magna Audio
13-03-2015, 16:48
That’s a wonderful looking deck – reminiscent of the EMT 950, but with a longer, and possibly better, arm. What is the cartridge?
It's Serge's deck - He has an EMT as well. Say's they are on a par sound wise. The arm is OEM AEG as far as I know (well apart from the tube etc, wot I made:) ).
Steve, don't flame me please, but when you have time, could you investigate making a arm assembly for a Lenco L75 arm? The counterweight and possibly the V bearing rod could still be used, but obviously the headshell would need totally re-thinking a la Syrinx PU2 perhaps? I only ask because the cue, bias and arm bearing assembly seems fine for the job, the V Blocks can be updated by 'Dezmo' and it's only the arm tube, springy counterweight rod and headshell that people don't like..
Sorry if I'm wasting your time.
Magna Audio
14-03-2015, 17:41
Hi DSLR,
Depends on what exactly, much can be done.
I'll PM you do we can discuss further.
Powered by vBulletin® Version 4.2.3 Copyright © 2024 vBulletin Solutions, Inc. All rights reserved.