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  #21  
Old 09-14-2018, 02:43 PM
slowGEEZR slowGEEZR is offline
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Quote:
Originally Posted by vegaracer1 View Post
Ttw is closed now. Larry Denham retired after selling his Machine shop.
He made turntables while not machining Aerospace components.
Really nice tables after he fixed a few bugs.
My GEM is killer. But, it had teething problems. Larry used a bronze bearing thrust plate, which was too soft for the 42 lb copper platter. It was trashed after about fifty albums and when I told Larry, he sent me another thrust plate, of different metal and it wore through, also. He then closed up shop and I was on my own. Luckily for me, a friend's son worked at a metal shop and I gave him some specs for another thrust plate, this time out of very hard stainless steel. I've since played hundreds of albums and both bearing and thrust plate are doing well, no wear at all. The Teflon disk above the thrust plate lasts a long time, but I had to find a source for a Teflon rod and I now cut my own replacements for those. I bet I have a hundred year supply of Teflon washers now! Another issue is that the very soft o-ring for the capstan is hard to find. I tried harder o-rings, but they transmit motor vibration into the platter and caused rumble. I've gone through five different rubber belts, but had slight speed holding issues. I just used the original capstan. I then tried mono-filament fishing line, but it tended to stretch. I finally found a good solution with multiple filament 50 lb test fishing line. It didn't stretch and keeps a very good speed consistency. In hindsight, I wish I'd have purchased his dual belt capstan and belts and I probably would have been good. I'm still on the lookout for the correct consistancy o-ring, but to be honest, there's doesn't seem to be any difference in sound quality using the fishing line. I think that with platters at around 40 - 45 pounds, the belt/o-ring differences diminish. Even though I absolutely love my table now, I doubt I will ever buy from a one man operation again, as Larry absolutely vanished when he retired and I've received no support.
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  #22  
Old 09-14-2018, 02:45 PM
slowGEEZR slowGEEZR is offline
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Originally Posted by Jack in Wilmington View Post
You should change your equipment list to reflect the change. I'm not familiar with the TTW brand, but I'll do some research.
I can't alter the equipment list. Site won't allow me to. I've actually had multiple changes to my system, SVS-SB4000 sub, two additional phono cartridges, upgraded the QB-9. updated the Mac Mini, added a Spatial support base, added K&K Audio SUT, added a Sansui TU-919 Tuner, added another pair of headphones, and most importantly, added nine diffusers to my room, which already had six bass traps and five absorbers, and reclothed them all in the same color, except for the front two, which are GIK ART panels.

Last edited by slowGEEZR; 09-14-2018 at 02:58 PM.
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  #23  
Old 09-14-2018, 03:40 PM
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Jack in Wilmington Jack in Wilmington is offline
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We need the moderator to work on that. That should be an easy fix.
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Speakers........Dynaudio Contour 1.8 Mk II
Amp...............Pass Labs X150.5
PreAmp..........McIntosh C2600
Sources..........Music Hall MMF 9.3 Walnut w/ Goldring
Eroica LX MC Cartridge
Phono Pre...…..Sutherland Insight

CD Player Rotel RCD-1072
Record Cleaning Machine...….Okki Nokki
DAC................Bryston BDA-3
Headphones.....Drop + Dan Clark Audio Ether CX /
Sennheiser HD-660S
Headphone Amp.....Bryston BHA-1
Cables....Amp to preamp - Morrow MA4
Preamp to DAC - Morrow MA4
Preamp to Headphone Amp - Morrow MA2
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  #24  
Old 09-14-2018, 04:36 PM
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vegaracer1 vegaracer1 is offline
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Quote:
Originally Posted by slowGEEZR View Post
My GEM is killer. But, it had teething problems. Larry used a bronze bearing thrust plate, which was too soft for the 42 lb copper platter. It was trashed after about fifty albums and when I told Larry, he sent me another thrust plate, of different metal and it wore through, also. He then closed up shop and I was on my own. Luckily for me, a friend's son worked at a metal shop and I gave him some specs for another thrust plate, this time out of very hard stainless steel. I've since played hundreds of albums and both bearing and thrust plate are doing well, no wear at all. The Teflon disk above the thrust plate lasts a long time, but I had to find a source for a Teflon rod and I now cut my own replacements for those. I bet I have a hundred year supply of Teflon washers now! Another issue is that the very soft o-ring for the capstan is hard to find. I tried harder o-rings, but they transmit motor vibration into the platter and caused rumble. I've gone through five different rubber belts, but had slight speed holding issues. I just used the original capstan. I then tried mono-filament fishing line, but it tended to stretch. I finally found a good solution with multiple filament 50 lb test fishing line. It didn't stretch and keeps a very good speed consistency. In hindsight, I wish I'd have purchased his dual belt capstan and belts and I probably would have been good. I'm still on the lookout for the correct consistancy o-ring, but to be honest, there's doesn't seem to be any difference in sound quality using the fishing line. I think that with platters at around 40 - 45 pounds, the belt/o-ring differences diminish. Even though I absolutely love my table now, I doubt I will ever buy from a one man operation again, as Larry absolutely vanished when he retired and I've received no support.
I love my table but I do wish parts were of the shelf also.
I have to make own drive belts too.
I have tried viton, and silicone.
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  #25  
Old 09-14-2018, 08:34 PM
Formerly YB-2's Avatar
Formerly YB-2 Formerly YB-2 is online now
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Perhaps slowGEEZR was once a 'subscriber' and was entitled to a signature. And, no longer being a subscriber cannot access same. Just a guess.
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