When a Kenwood record cleaner-to be becomes a Garrard 301/Thorens TD124 Hybridmonster - Page 4 - diyAudio
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Old 23rd September 2012, 03:21 AM   #31
rhing is offline rhing  United States
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Great idea. I do use Vinyl Engine, but they do not have a manual. I downloaded a manual for a similar Kenwood KP-4021, but the tonearm is different.

I will post on one of the related threads and see if I can get any help over there.

Thanks,
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Old 28th September 2012, 01:12 PM   #32
rhing is offline rhing  United States
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I was finally able to figure out how to adjust the lateral balance.
  1. Adjusted cartridge alignment such as offset, and overhang. For this, I used the "Stupid" protractors from the Vinyl Engine website (Cartridge Alignment Protractors | Free Turntable, Tonearm & Cartridge Tools | Vinyl Engine). I used both the Baerwald and Loefgren protractors to insure proper alignment.
  2. Balanced the arm with 0 tracking force
  3. Removed the anti-skate weight and set the anti-skate to 0
  4. Propped up the rear of the turntable approx. 80mm and released the tonearm from its rest.
  5. I slid the lateral balance weight inward and outward until the arm stayed in a stationary position, and did not swing freely inward or outward.
Next, I adjusted the anti-skate:
  1. Installed the anti-skate force weight in a middle position.
  2. Using a digital tracking force gauge, I set the tracking force to 1.25g.
  3. Playing on blank portions of a disk, I increased the anti-skate force to where the tonearm did not move freely inward or outward. To increase or decrease the anti-skate, I could also slide the weight up and down the arm it was mounted to as well.
Here's a short video clip of the turntable in operation:

www.youtube.com/watch?v=EREF87Xeg_k

I am happy to say that this turntable sounds pretty good with the stock cartridge. I think a nicer Grado MM will sound better and provide greater air and detail. The bass was solid and clean and the mids were very nice playing through the Dynaco SCA-35. The soundstage and imaging were very nice too. There was no rumble or noise coming through on playback and the drive system plays quietly. I do hear a little noise when the idler wheel is driving the platter, and no music is playing through the speakers. I think I'll need to ultimately get the idler wheel rebuilt. Hopefully, I'll have an opportunity to bring this to a friend's home soon and compare it to his Empire 208, Thorens TD-124 and Lenco L-75 turntables.
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Last edited by rhing; 28th September 2012 at 01:37 PM.
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Old 11th October 2012, 05:12 PM   #33
rhing is offline rhing  United States
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I installed a mint-condition Shure M97eX MM cartridge on the Kenwood I had on hand from an old AR XA turntable that I am also restoring, and this turntable sounds much better than before. 1.5g tracking force with the Dynamic Stabilizer down yielded the best sound with regard to frequency response, detail and I was able to dial in the anti-skating using the HiFi News & Record Review test LP. I also propped the table up on a 3/4" thick bamboo cutting board sitting on rubber/cork feet. On this makeshift platform, the turntable sounds better with a good tonal balance of bass through the treble.

2012-09-30 05.30.19.jpg

I found out that the tonearm is a JELCO SA-100 manufactured for Kenwood. I sent an email to JELCO for any manuals, and Mr. Haruo Uchida, JELCO's sales manager, quickly responded that they did not have any manuals for an OEM tonearm that was over 40 years old. That is no big deal since I was able to figure out how to set the tonearm and cartridge up.

Together with my restored and modified Dynaco SCA-35 amp, I'm enjoying this analog set-up. My next experiment is to try some low-to-medium compliance MC cartridges and Western Electric step-ups.

2012-10-06 09.44.38.jpg
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Last edited by rhing; 11th October 2012 at 05:18 PM.
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Old 11th October 2012, 10:49 PM   #34
Nanook is offline Nanook  Canada
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Default I've started looking...

...and haven't found anything like your Kenwood.

I suspect the Jelco and the Shure are a nice match. Not sure how an MC will fare though.

How's the SCA-35? That is another piece I thought I'd like rather than the ST70, as it is an integrated (I like integrated amps). Now match that set-up with a nice (and perhaps smallish) full-range loudspeaker set-up (as in a single driver loudspeaker system) and I think you'd have magic.

I am looking for some pieces that punch a few classes above their weight class for a simplified system. No need for an ARC (although I am a little jealous). Oh well, perhaps in another life.

rhing,
the system looks great and great together. If I missed it what speakers are you planning to use with it?
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Old 11th October 2012, 11:19 PM   #35
rhing is offline rhing  United States
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The Dynaco SCA-35 drives a pair of restored and modified Klipsch Forte II's. I installed new Sonicap Gen I caps and new electrolytic caps in the crossovers, replaced the Phenolic tweeter diaphragms with Titanium diaphragms from Bob Crites, installed new internal 14Ga Copper wiring and Pomona 3770-X Gold-plated Copper 5-way binding posts. I'm quite pleased with this set-up.

I just posted on an SCA-35 thread on this forum regarding my SCA-35 integrated:

SCA-35 Dynaco

George at Audio Regenesis has very nice boards for Dynaco gear. I really wanted blank boards to populate them, but I found George's boards to be superior to the blank boards out there, so I went with those even though everything is all soldered in place. I still stuck in some of my faves for caps and resistors.

As for the cartridge, I do like the Shure M97xE MM cartridge a lot. I might consider the JICO SAS tip stylus to upgrade the Shure. I've read a lot of positive feedback on them.
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Old 12th October 2012, 09:17 PM   #36
Nanook is offline Nanook  Canada
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Default Klipsch Forte IIs...

I found a pair that were beaten beyond belief, but altogether. I went back to buy them ($200 in a pawn shop) and they were gone .

This whole "vintage" system keeps with my thoughts regarding that New does not necessarily mean Better.

I haven't really been a huge fan of Klipsch loudspeakers, but recently I heard a pair of heavily modified Heresy IIs that were spectacular. They were absolutely open and transparent. In fact, when I can afford to, I will seek out a pair to make (I can find the drivers, and the crossover boards can be rebuilt or made from scratch) or modify a used pair. As almost everything would be changed in the cross-over, and the cabinet would have to be heavily fortified, that may be the way to go. The Heresy speakers were driven by a Quad 405. Unsure of what pre-amp was used. The source was a slightly modified $50 DVD player (I suspect a few caps were replaced, and better RCA connectors were installed, with no fancy op-amp replacements. All wiring was custom built. Two HSU 12" subs were used. I preferred the system without the subs.

I think some 20+ years ago I read a review and comments regarding the "current dumping" amplifiers by Quad (the 405 and 606 I think) . The review/technical article suggested that just maybe Quad had built an "almost" perfect amplifier. This most recent listening experience has confirmed this for me.

rhing: Congrats on the vintage system. I imagine that it gives many folks a fit when the budget is considered (and maybe even not ).
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Old 12th October 2012, 10:43 PM   #37
Nanook is offline Nanook  Canada
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Default And if a "vintage" cd player is in the works...

... get a Sony Playstation SCHP-100X and rebox it in something like the one shown here. It would certainly look the part.

These things sound great with a tiny bit of work.
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Old 18th March 2014, 07:21 PM   #38
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Thanks to rhing's help I've got a Kenwood PC 350 belt-idler up and running. However it runs a little fast and I don't know why. Tried both stock and LPgear belts, all surfaces are clean and re-greased/oiled. Replaced the .047uf cap across ac wiring. Speed is steady, just a bit fast. I'm stumped.

Anyone got a any suggestions?
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