dover
Responses from dover
| Who needs a MM cartridge type when we have MC? Lewm, a few years ago local distributor found a cache of NOS Denon 103D's in their warehouse. I went through all of them examining their supplied measured response graphs. None of them were the same, and I was able to pick one that had the most ac... | |
| SUT Hum Yes - this suggests that in your SUT the chassis is not grounded unless you connect a wire to the preamp from the earth post of the SUT. If the SUT chassis is not grounded then all the soldered connections inside are unshielded and prone to RF and... | |
| Vintage DD turntables. Are we living dangerously? Ct0517Thank you, the ET2 I Beam is an excellent example of an I beam - no plywood, no lead or glue, just a piece of plastic with flanges top and bottom to give axial and structural rigidity - the whole piece being an extrusion to form the I. Richa... | |
| Vintage DD turntables. Are we living dangerously? 5-14-15: RichardkrebsPly AND "I" beams use a similar technique to separate the outer layers where any bending causes compression in one layer and tension in the otherWhy are we debating this???Richardkrebs you described your plinth as a "form of I... | |
| Vintage DD turntables. Are we living dangerously? 05-14-15: RichardkrebsDover.The essence of an I beam and ply is the separation of the two outer layers (sheets). Any bending causes compression of one sheet and tension in the other. This increases the stiffness of the structure. Richardkrebs, tha... | |
| Vintage DD turntables. Are we living dangerously? Pod Stability05-11-15: RichardkrebsHalcro.Check my math if you like, the numbers are sound.A perusal of your numbers shows they have failed the sound check, and here is why -05-10-15: RichardkrebsThere, one TT is mentioned where specific data is g... | |
| Vintage DD turntables. Are we living dangerously? 05-13-15: RichardkrebsWhen I made the decision to build my TT plinth out of acrylic the problem of stiffness was considered. My TT uses 2 x 30mm thick Acrylic sheets, separated and fused to a lead spacer. By separating the two structural plates a ... | |
| Vintage DD turntables. Are we living dangerously? 05-10-15: RichardkrebsThe linear temperature coefficient of expansion of Aluminium is 0.000023m/m degrees C and is indeed approx. double that of steel.Using this figure on a LO7D and assuming a 5 degree C delta, we get a change in distance to spi... | |
| JVC TT-101 Won't Stop Lewm,I find it useful to take lots of digital photos before I work on equipment. Quick and easy and can save a lot of time. | |
| Vintage DD turntables. Are we living dangerously? Thucan - it is very simple.The stylus is measuring the groove. To accurately measure the groove the platter and arm board must maintain a constant relationship. They must be rigidly coupled via a close loop system to ensure there is no differentia... | |
| Vintage DD turntables. Are we living dangerously? For those of you that have platters that have a raised lip - it is a very easy job for a competent engineering workshop to remove the lip ( without upsetting the balance) which would enable you to run any platter mat, or alternately reduce the hei... | |
| Proac problem: tweeters or crossover? I recently had some Proac EBS with no tweeter output. The Solen caps in line with the tweeter had failed - very unusual for a polypropylene cap. | |
| Skeletal vs Plinth style turntables Further to the above02-10-15: RichardkrebsI do not understand how the time line test proves that the pod is not moving? All it is measuring is the platter's speed.A basic understanding of the physics involved would help.Halcro's TT is a direct dri... | |
| Skeletal vs Plinth style turntables Halcro, Timeltel et alI have a hypothesis that surely explains that my friend Richardkrebs may well be correct. The hypothesis is that Halcro has inadvertently fabricated the worlds first Smartpod, that self corrects any stylus drag by moving in a... | |
| MC suggestions for conrad-johnson Premier 15 Have a look at the Benz Glider SM or Benz Wood SM - both 0.8mv output.I have heard these working very well with a CJ TEA2SE with 55db gain, no step up transformers required. |