New Jelco Tonearms

Dec 18, 2013
214
0
16
San Diego area
#1
http://www.monoandstereo.com/2017/08/new-jelco-knife-edge-type-tonearm.html?m=1

I'm surprised no one has mentioned these yet. I think they deserve serious consideration, not only for the affordable cost levels, but for the new knife edge vertical bearing, the choice of static or 'dynamic' balance, and Baerwald geometry. The latter has the advantage over most other past and current Japanese arms, such as Ikeda and FR, which have a bizarre geometry requiring twisting the cartridge in the headshell to obtain more conventional alignment like Baerwald or Lofgren B.
 

Ron Resnick

Site Co-Owner, Administrator
Jan 25, 2015
5,076
30
48
Beverly Hills, CA
#2
Very interesting! Thank you for starting the thread.
 
Dec 18, 2013
214
0
16
San Diego area
#3
Very interesting! Thank you for starting the thread.
Most welcome. Another advantage benefits SPU users. Perfect Baerwald alignment is possible with these arms, whereas any reasonable alignment of SPU with Ikeda or other Japanese arms given their very strange geometry is impossible to achieve since obviously the SPU cannot be twisted. For instance, if you try to setup an Ikeda 407 with SPU, you cannot find a single null across the record. You have to play with the pivot to spindle distance to find any sort of compromise.
 

zog

New Member
Oct 9, 2013
17
0
0
#4
This might be a decent upgrade - the 750D is already no slouch.
 
Sep 10, 2012
472
1
18
scotland
#8
20171130_115657.jpg

Technics SL-1200GR turntable, fitted with a Jelco TK-850S tonearm
 

zog

New Member
Oct 9, 2013
17
0
0
#9

zog

New Member
Oct 9, 2013
17
0
0
#14
Looking forward to it miniguy. I had a poor experience with an Origin Live Conqueror - this may be 'The One' :->
 

Bso

New Member
Sep 30, 2016
66
0
0
Massachusetts/Toronto
#15
Some critics used to complain of the "knife edge chatter" of the 80s SME and SAEC arms. Was this ever cleared up? Was it due to another reason?

Does anyone know why Jelco came out with a knife edge bearing?
 
Dec 18, 2013
214
0
16
San Diego area
#16
Initial impressions of the new TK-950L: this is one sweet tonearm. It presents a large and deep stage with great detail, fast transients and an overall presence that draws you in. Midrange exudes great clarity, and the top end is very smooth. Noteworthy is a very articulate and deep bass. So far only played my SPU A95. Two minor quibbles - it would have been nice to have a mark for the horizontal bearing center on top of the bearing housing, and the VTF adjustment knob is fairly coarse so it takes a little time to dial it in exactly where you want it. I bet this arm will hold its own in comparison to many more expensive arms. I think it represents one hell of a bargain.

BCB3BC1E-EA97-4B04-86F5-C4DDA9316BAD.jpg
 

kevinmi

New Member
Dec 29, 2017
4
0
0
#17
These look a lot like the Ortofon tonearms. I cannot find any info on these except what I've read here. Any links to more info would be much appreciated. I'm running SA 750 arms on both my Oracle turntables, and might be catching the upgrade bug.
 
Sep 10, 2012
472
1
18
scotland
#18
Ortofon are made my Jelco & many others
Koetsu, Sumiko, Audioquest, Linn, Oracle, Ariston, Roksan, Revolver, Mission , Graham. Denon, Pioneer, Trio Acoustic Solid, Transrotor

Jelco to develop new singing arm products are TK-850S 9-inch and TK-850L 12 Inch net balanced balance arm, and TK-950S 9-inch and TK-950L 12-inch dynamic balanced tone arm. The four tone arms all adopt the ideal bearing design pursued by many "enthusiasts" - the bearing bearing shaft! This unique bearing shaft is actually used in the classic model of SME and SAEC. However, the newly designed Jelco shaft More attention than before, the blade selected industrial steel casting, to avoid sliding for a long time to bring the loss, coupled with the roof of the V-shaped pit and the blade position than the previous design of the other arm spindle broader swing Coverage, more evenly on the force, completely solve the need for some manufacturers to adopt the "double knife axis" support type support method, it will not use the double knife axis and constitute too many pivot points, thereby increasing the resistance!
Knife axis to give the record in the album to move the level to obtain the best tracking force. The two sets of bearings responsible for horizontal tracking, Jelco is more for this new tone arm masterpiece, each element, and even each small axis of beads are all Ichikawa staff's effort!

TK-850S and TK-850L are knife-axis net balance design, and TK-950S and TK-950L two addition to superb knife bearing, it is more balanced attitude design, so that different types of singing can be the most accurate Acupuncture data and tracking performance. Four tone arm after the re-砣 is a new design, the re-head can be two parts of the first telescopic telescopic shift, so that there are more important points to re-adjust the need for acupressure acupressure.
Four new singing tongs can be used for different sonic / acupressure range from 17 to 35 grams (with a shell meter), even the Ortofon's SPU or EMT's TSD shell integrated singing head can easily grasp, the user does not need Troublesome matching problems, which affect the overall performance of the vinyl system.
 
Dec 18, 2013
214
0
16
San Diego area
#19
These look a lot like the Ortofon tonearms. I cannot find any info on these except what I've read here. Any links to more info would be much appreciated. I'm running SA 750 arms on both my Oracle turntables, and might be catching the upgrade bug.
The similarity to Jelco-manufactured ortofon arms as well as previous Jelco branded arms is restricted to the anti-skate mechanism, queuing device and mounting collar. Everything else is new design.

B4DCFCA0-1132-4756-9DB6-E13AFA4A8A37.jpg 443DD203-4D6F-41D8-B522-0AD1DDB57F09.jpg 9D7200C7-8CC1-4EFA-955A-5337B7062397.jpg
 

About us

  • Founded in 2010 What's Best Forum invites intelligent and courteous people of all interests and backgrounds to describe and discuss the best of everything. From beginners to life-long hobbyists to industry professionals we enjoy learning about new things and meeting new people and participating in spirited debates.

Quick Navigation

User Menu

Steve Williams
Site Founder | Site Owner | Administrator
Ron Resnick
Site Co-Owner | Administrator
Julian (The Fixer)
Website Build | Marketing Managersing