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Anyone here using the Jelco 370H tonearm?

Ilikevinyl said:
With the Yamamoto carbon fiber headshell you get cleaner clearer sound along with deeper defined bass. That's what most say who hear a difference. My Yamamoto carbon fiber headshell arrived today! Has the azimuth adjustment like both the Zupreme and Jelco headshells. Going to mount the Nagaoka MP-200 to that headshell whenever it arrives.
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Do you have the HS-25/zupreme to compare to the Yamamoto? I have an MP-200 on the way as well to mount on a Jelco TK-850s. Compliance will be in the green but just barely so I might look for a lighter headshell if it is a problem on the test record. What is the effective mass of arm?
 
vintageadict said:
Do you have the HS-25/zupreme to compare to the Yamamoto? I have an MP-200 on the way as well to mount on a Jelco TK-850s. Compliance will be in the green but just barely so I might look for a lighter headshell if it is a problem on the test record. What is the effective mass of arm?
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Just saw you have the ts-550s Mkii. Listed at 9.2 grams EF. Mass. Should be a good match. Definitely let us know your findings. Thanks!
 
vintageadict said:
Do you have the HS-25/zupreme to compare to the Yamamoto? I have an MP-200 on the way as well to mount on a Jelco TK-850s. Compliance will be in the green but just barely so I might look for a lighter headshell if it is a problem on the test record. What is the effective mass of arm?
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No, my TS-550S MKII arm didn't come with a HS-25 type headshell. The Nagaoka cartridges, the compliance is on the low side! You won't have a problem! They love Jelco tonearms!

Here's my Jelco arm mounted on my Thorens TD-160. Notice the standard Jelco headshell.

jlc mntd.JPG
 
vintageadict said:
Just saw you have the ts-550s Mkii. Listed at 9.2 grams EF. Mass. Should be a good match. Definitely let us know your findings. Thanks!
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The 9.2 gram arm mass that Jelco states is the weight of the headshell, alone! Don't think Jelco has the correct arm mass for the TS-550S MKII.
 
The effective mass should be right. I have a 550s on a TD 160 also and I reached out to them about a year ago. They calculate it with the standard head-shell like the one you have in the picture. The TK 850s is 13.5 grams Effective mass so heavier I assume due to the knife edge bearing system since the arms look almost identical. If you add say a 12 gram head-shell it does not add 12 grams to the effective mass since it is partially offset by the rest of the arm. I am not enough of a mathematician to figure that out though. Compliance on the Nagaoka cartridges is tough since it is calculated at 100 hz. All kinds of conflicting views out there as to what multiplier to use. Some say 1.5 and others 2.2. I think you are good though based on the numerous threads I have read on this. Lots of people like the Mp-200 on an arm around 9 grams. Good luck!
 
My Jelco 370H came in today. Very Nice tonearm feel very good no bearing play and solid build quality. I found my LP Gear Zupreme (Jelco HS-25) headshell, Hopefull this will be a nice match with the Ortofon Super OM-40 and Audio Technica AT15Sa. Also planning to get a Sumiko EVO III. I will posts some pics tomorrow.
 
No, my oil tube was fine, I only added a couple of drops, still have half the tube left. From what I could find out apparently only a small amount is needed.
 
mjwraw said:
No, my oil tube was fine, I only added a couple of drops, still have half the tube left. From what I could find out apparently only a small amount is needed.
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Cool! mine looks like it only has for at least 4 drops if that! The funny part it hasn't been uponed up either. I saw this post on another forum that the person that got a Jelco arm has almost nothing left in the bottle. I saw that use two to three drops of oil. Is that how it's supposed to be? I can't find any info on how many drops to put in the oil damping.

Now I'm just waiting for my Easy VTA to come in and I will start on the table project with the Jelco arm.
 
Drummerboy2 said:
Cool! mine looks like it only has for at least 4 drops if that! The funny part it hasn't been uponed up either. I saw this post on another forum that the person that got a Jelco arm has almost nothing left in the bottle. I saw that use two to three drops of oil. Is that how it's supposed to be? I can't find any info on how many drops to put in the oil damping.

Now I'm just waiting for my Easy VTA to come in and I will start on the table project with the Jelco arm.
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Yeah, I found that the most difficult part of the whole project was soldering the tonearm wires, because those wires are so tiny, literally the same as a human hair width, but that may be because I'm not at all experienced at soldering (the last time I soldered anything before this was about 10 years ago!)
 
mjwraw said:
Yeah, I found that the most difficult part of the whole project was soldering the tonearm wires, because those wires are so tiny, literally the same as a human hair width, but that may be because I'm not at all experienced at soldering (the last time I soldered anything before this was about 10 years ago!)
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Yes, it can be tricky. Just make sure you have the right soldering tip for the job along with the correct heat. You need to pre-tin the wires and RCA connector, this will help the soldering and wont need so much heat. You will have to secure the arm, wires, and RCA connectors so they wont move during soldering. Remember, Flux is your friend!
 
Ilikevinyl said:
No, my TS-550S MKII arm didn't come with a HS-25 type headshell. The Nagaoka cartridges, the compliance is on the low side! You won't have a problem! They love Jelco tonearms!

Here's my Jelco arm mounted on my Thorens TD-160. Notice the standard Jelco headshell.

View attachment 2058260
Click to expand...

Yes, and I also notice the big screws to mount the cartridge that are adding more weight. Correct? So isn't this like stepping up in headshell weight that changes the arms performance due to the added weight?
 
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When I had the headshells out for the pics, I notice the stock headshell is a little longer than the LP Gear (Jelco HS-25) Zupreme.
 
I have a 370H on my DDX turntable. I use the stock shells and have mounted a Blue Point, Ortofon MC25FL, AT33PGT, and ZYX RS-30-02 at different points in time and all sounded good to my ears. I was also wondering how much oil is supposed to go in the damping hole.

My cueing sticks and I'd like to find a replacement unit but no luck so far.
 
Aerobat said:
I have a 370H on my DDX turntable. I use the stock shells and have mounted a Blue Point, Ortofon MC25FL, AT33PGT, and ZYX RS-30-02 at different points in time and all sounded good to my ears. I was also wondering how much oil is supposed to go in the damping hole.

My cueing sticks and I'd like to find a replacement unit but no luck so far.
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A bit pricey but I think this is a clone of the original JL-45 Jelco cueing device:
http://www.acrylteller.com/epages/e.../Shops/es122814_acrylteller/Products/85100459
There's also this:
https://www.ebay.com/itm/Tonearm-Li...air-Service-Jelco-VPI-or-Others-/392906151190
 
Drummerboy2 said:
Yes, it can be tricky. Just make sure you have the right soldering tip for the job along with the correct heat. You need to pre-tin the wires and RCA connector, this will help the soldering and wont need so much heat. You will have to secure the arm, wires, and RCA connectors so they wont move during soldering. Remember, Flux is your friend!
Click to expand...

Agree 100%. I actually found that, because the wires are so incredibly fine, once I'd put some flux on the RCA connector surfaces that was enough for the unsoldered wires to stick in place, which made the actual soldering a lot easier! Still very fiddly though. This was the end result, not the greatest soldering ever but seems to work fine:
20201103_160710.jpg
 
mjwraw said:
Agree 100%. I actually found that, because the wires are so incredibly fine, once I'd put some flux on the RCA connector surfaces that was enough for the unsoldered wires to stick in place, which made the actual soldering a lot easier! Still very fiddly though. This was the end result, not the greatest soldering ever but seems to work fine:
View attachment 2060325
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I put a female DIN plug in the bottom of mine and drilled/tapped a hole for a setscrew to hold it. Then made up a cable. Works well but yea, soldering hair-thin wires is not fun.
 
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