Upgrades for VPI HW -19 jr.???

Hi Brusson, Hmm, What I personally found myself, was more, or less the exact opposite.

I believe my second hand Mk-IV upgraded Platter to be an older version as well, weighing in at axactly 18lbs.

While the Mk-IV Platter I had gotten had a much more sturdy, larger diameter Bearing, and Bearing Well, versus the original Jr Platter, I had noticed the Spindle itslef to be just a tad shorter than the Jr.
Both were 1/4"-20 threaded for Clamps. The Jr Bearing Well I had appeared to have a Brass Bushing at the top near the Bearing Well Flange, While my MK-IV Platter Bearing Well, has a Bushing made out of some sort of Black material, and I'm assuming it is Delrin, and not some type of Metal.

I'm almost positive that all Jr Platters had the bearing-spindle pressed into the Platter, while the Mk-IV Platter, such as I have, the Platter just sits on top of the Bearing-Bearing Flange, and it's massive weight keep eveything coupled up.

I notice on my MK-IV Platter itself, 3 Drilled Holes in its center, with three Metal Pins-Screws installed (The supposed 3-point support system I guess), which appear to be threaded into-through the Platter, and with Allen Head screw heads on the top-side of the Platter. Mine appear to be perfectly flush with the underside of the platter so I could not gain any spindle length by screwing in-adjusting the pins. No doubt probably not a good idea to monkey with anyway, as one would probably wind up with Platter Wobble.

I was under the premonition that later versions of the MK-IV Platters were 20lbs, and then also moved on to an Inverted Bearing? Which is yours? Mark

Hello Mark-
Well I've got a 9 pound platter, black with cork bottom, spindle press fitted, 1/4-20 threaded on top. It's 7/8" thick, the same size as my Junior's ceramic platter. Is it a Mk-3 platter? The spindle is about 2 3/4" long, less than 3/8 in diameter. If you or anyone knows where I can find (what I presume to be an older)and smaller sized bearing for it, please let me know.

Hi Brusson, My VPI MK-IV All Black Platter is not press fit to the Spindle, and yes, mine also has a cork ring on its underside, and this no doubt is to cover the Lead Ring that must be glued in to the underside of the Platter. When I say Spindle, I'm talking about what shows above the top of the Platter, and is threaded for the Clamp, and not the underside-Bearing End.

I am unsure exactly what you have there, and I'm certainly not an authority on VPI, and their history, and changes in the HW-19 product line.

I have see pics of Mk-III Platters that were a combination of Aluminum, and Black Acrylic, MK-III's that were all Black Acyrlic, and I believe all the Mk-IV Platters were all Black Acrylic, none being a combo of Aluminum/Acrylic.

This could be a very early version Mk-IV, or a Mk-III Platter you have? Only way to tell would be to give Mike a call at VPI. I'm sure he knows much more than I. Mark

Hi again

I don't have much time at all to write, but let me recommend to the rest of the hw-19 jr. club a new phono preamp (as an alternative to the excellent Black Cube). Today I borrowed from the deal the Jolida Model JD9 tube phono preamp. So far I've only listened to a few LPs, but at least for jazz and classic rock (listened to Grateful Dead) it's really super. It retails for around $500-600, but most dealers will do it for around $450. I have no intention of buying it, since I;m about to sell my jr., having just ordered a Scoutmaster through Audiogon, but my experience with this new preamp and my jr./PT-6/Glider (medium output) is making me seriously reconsider selling the Glider cartridge (was going to whole hog on a used Lyra Helikon).
It's pure magic!
footnote: I sold my Lehmann Black Cube recently for $250 because i was in a rush to have my sony 9000es dvd/sacd player modded, but one last evening with my jr. rig (which had been in storage at my gf's place) convinced me once and for all to do a 180 and stay analog. (The best SACDs are spectacular, don't get me wrong, but the software selection is decent for classical yet really a tease for anything else)

Hi Tedd,
The Jolida JD9 sounds like a nice unit, especially for the money, as i did a bit of searching here on A-Gon, and a bit online to see what all the bustle was about :-)

I myself wouldn't mind giving a unit such as this a try, but I'm fearing that it won't be a very compatible unit with my hi-output 1.9Mv Benz Glider, with internal impedance of 85 ohms?

I see some specs listed for the unit, but as far as deviating from these factory set adjustments to make it compatible with my Glider, I have no idea?

Do you remember what gain setting was used on the JD9, how do they adjust, and is there any mention of perhaps any alteration from the factory pre-set gain, and loading settings? Does the JD9 use a Wall Wart, or has its own internal power supply?

As Nasgarch recommended, he has stated that ideal loading for my Glider should be around 2.2K give or take.

If anyone else has the JD9, please feel free to jump in. thanks, BTW, I'm presently using a McCormack Micro Phono Drive.Mark