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georgesgiralt

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About georgesgiralt

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    Georges

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  1. Thank you for your answer, Owen ! Actually, I rinse using the US cleaner and "distilled" water. When I used too much polysorbate, I rinsed a couple of time using tap water, still in the US cleaner, then a final bath in distilled water. I vacuum dry the records, too (I have made a suction device with a plastic tubing and 3 layers of micro fiber cloth) and use a shop vacuum device in order for my wife not to complain ... I remember her face when I emptied the dish washing machine which had cleaned all the plastic parts of a second hand laser printer I had for cheap because it was sooo dirty.... So I'm very careful when using house devices .... Or conceal myself during use 😉
  2. Hello Owen, I've bought a nice box for 3.5€ : Fidelio from Beethoven, Otto Klemperer conducted. The records are quite fine but need a cleaning. If I use 5 to 10 ml polysorbate in 5 l distilled water, should I rinse the records after cleaning ? And if yes, how many records can I rinse in 5 l distilled water ? Thanks a lot for your answer !
  3. Hi ! Just checked my notes. The Polysorbate was at 35 ml as per the seller's instruction (he said between 35 and 50 ml for 5 L mix). Do not trust your memory .... Have a nice day !
  4. Around 15 ml as per the seller's instructions....
  5. Hello Guys, I tried Polysorbate 20 but I have yet to get the proper concentration. At first I used the manufacturer suggested value. It is way too much and had to rinse the records 4 times plus one in distilled water to get rid of the product. I was told that the Polysorbate does not keep well and you have to let it in the fridge. Also, i was told there are better Tergitol out there for the job at hand but I do not know the name of them... All in all, I am satisfied with the Polysorbate and I have a batch of records to clean to test the final dilution. I will report when this is done and what is the outcome.
  6. I could not watch him giggle for more than a couple of minutes. He may have something very interesting to say but I can't stand it. Sorry.
  7. Hello, My late brother had a Thorens TD160 fitted with an SME Series IIIs arm. The cart was a Shure V15-IV. My sister in law asked me to make this turntable pristine for her. As the stylus was well worn on the Shure, and she is on a very limited income, I put an Audio Technica ATVM95-E cart on the arm. The cart perform flawlessly and track very very well. So you can go this route and use one of the more advanced stylus shape this cart offer.... Just my 2 ¢ here.
  8. Hello, Do you have any measurable figures to show the way one design is superior to the other ? Other than snake oil and listening ? I would _like_ to see wow and flutter figures, rotational speed accuracy of the various design you talk about, and, add to this the measured values of the noise floor they produce. But it is just me 😉
  9. Hello, For me the most ideal type of motor for turntable is the direct drive motor. It is neat, elegant and can be made as precise as one will. It can be very powerful (studio decks) or not. It has no expendable parts (belts, idlers... ) so it is also very long lived. And cherry on the cake, it is independent of mains voltage and frequency.
  10. Just a thought here, Have you tried the polish they sell in auto parts stores for making plastic headlamp transparent again ? I bet it could be of some use.
  11. my Grado is an old GTE+1 which was cheap in the early '80s when I bought it but I did not regret buying it and enjoyed it since.
  12. Hello Guys, May I add my pinch of salt ? First, Mr Holman (of THX fame) made a fine pre-amplifier called the APT Holman and this little beast has different capacitance/charge available for the turntable cart... Next, this little fella : https://www.aliexpress.com/item/32613345424.html?spm=a2g0o.productlist.0.0.1ca11885fb3w00&algo_pvid=5afb33c4-b408-49d1-ba4f-de6887013f62&algo_expid=5afb33c4-b408-49d1-ba4f-de6887013f62-13&btsid=3473d465-429e-4924-b499-7a2628b304df&ws_ab_test=searchweb0_0,searchweb201602_10,searchweb201603_53 can measure the capacitance of the phono cable from the RCA plug to the arm plug where the cartridge fit. (you have to remove the cart for capacitance measurement) Once you've got the total cable capacitance value, you can measure the inductance and resistance value of the cart coils using the same device and decide for yourself what to do with these figures. I've done this and set the Holman preamp to the 200 pF the Grado requires and use that setting with all my carts, most of them being AT or Ortofon... and enjoy the music. So your mileage will vary 😉
  13. May I respectfully said that it is snake oil ? The paint on the pre-war tubes and some post WWII tubes does not serve to block the light but, as it is a metallic paint, serves as a shielding (and it is in fact connected to the circuit ground). On the other hand, blue tint will filter the blue part of the light spectrum. Exactly the part which has the most energy so the more influence, if there is one. Light in the tube may move the plaque potential up a bit, but I do not think it will augment noise. I've tried on a MM preamp with the tubes apparent and lighted them with a powerful study lamp. The output of the lamp is modulated at mains frequency (50 Hz, in France) so I expected induced hum. No hum. Nada. Niente. So the noise has to come from elsewhere... Edit : I thought about this a lot. If some effect has to be seen from light in a tube, it should act to one of the grids inside the tube. Because the grids are the controlling element of a tube. So if you add something to the signal seen by the grid, the plaque will see a different flow of electrons than previously. AS I said before, the plaque surround all other tubes elements in order to catch all the electrons emitted from the cathode (and the filament) and modulated by the various grids. The behavior of vacuum tubes with a sinning wheel inside is different. The dark face will get the light and the energy of the light will make this thing turn. The other face is painted white in order to have lesser interaction with the incoming light, thus not preventing the axe to spin...
  14. Yes, they do. But if you use a lamp, the photons emitted are a continuous flow, so if they have an effect, this flow would add to the volume the plate gets and slightly modify the output but statically. The problem bothering me was the rumble. Rumble means sound so some sort of modulation. And a steady flow can't modulate ! So it had to be something else and I thought that maybe the lamp had an electronic circuit providing the oscillation heard. Hope I'm clear enough before my early morning coffee... Have a nice day
  15. Still using the 3600L; Yesterday I listened to a lot of records from rock to opera. Stereo and mono. Guess what ? the cart perform flawlessly on the SME arm ! I'm happy as a clam on it's rock !
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