antinn
Responses from antinn
| Record Cleaning Using Vacuum Machine for Cleaning and Ultrasonic for Final Rinse @orthomead, Below is Figure 39 from the book that shows the change in surface tension of Ethanol and IPA. There is not much difference between the two. To get an appreciable surface tension decrease about 5% is required. The record surface ten... | |
| Record Cleaning Using Vacuum Machine for Cleaning and Ultrasonic for Final Rinse @richardbrand, If you are spinning 9-records in a 6L tank, there are 2-problems - too much mass in the tank and you are overloading the tank, and even at a slow spin speed you are developing enough fluid flow/motion to pretty much kill most cavit... | |
| Record Cleaning Using Vacuum Machine for Cleaning and Ultrasonic for Final Rinse @oberoniaomnia, The density (rho) of Tergitol is not 1, its specific gravity is essentially 1, so it's the same as freshwater which is 62.4-lbs/ft^3, convert to mg/cm^3 = 28,304,164-mg/28,316.85-cm^3 = ~1-g/cm^3 = 28,316,846-mg/ft^3. How did you... | |
| Record Cleaning Using Vacuum Machine for Cleaning and Ultrasonic for Final Rinse @richardbrand, Thanks for the compliment, but not exactly a labor of love. I started that project during COVID when I was retired (not anymore), and it kept me occupied and my skill sets sharpened. And thanks to meeting up with Bill Hart @whart... | |
| Record Cleaning Using Vacuum Machine for Cleaning and Ultrasonic for Final Rinse @oberoniaomnia, how do you get from mass of pure dehydrated Tergitol to film thickness of 31 nm? Tergitol is something like a C33 hydrocarbon chain and generally hydrocarbon chains are around 1 nm thick (e.g., sugar). I failed to find any infor... | |
| Record Cleaning Using Vacuum Machine for Cleaning and Ultrasonic for Final Rinse @billstevenson, Bill, thanks for the clarification. Take care, Neil | |
| Record Cleaning Using Vacuum Machine for Cleaning and Ultrasonic for Final Rinse @billstevenson, Bill, I am not sure if you took what I wrote in Chapter XIII out of context. The records are vacuum dried because Neil reported finding 10%-30% residual solids left on the record surface using air drying techniques. So it is im... | |
| Source of Fremer's "1 arc second" claim? @pryso, I also consider MF to be a boon to the vinyl revival, not a bad dude. Please do not misunderstand my criticism. MF has been steadfast proponent of the vinyl playback and deserves the recognition and compliments he gets for that. But... | |
| Source of Fremer's "1 arc second" claim? @pryso MF reviewed the Oswald K3 Analog Corner #314: OMA K3 turntable & Schröder tonearm Page 2 | Stereophile.com and per this article (last paragraph) confirms that he bought the unit - Oswalds Mill Audio K3 Turntable - The Absolute Sound. | |
| Source of Fremer's "1 arc second" claim? The 1-arc-second likely originates from this turntable vendor whitepaper - Oswalds Mill Audio - K3 Whitepaper | OMA of which MF owns (or owned). There are a number of errors in the white paper: "...our device needs to actually physically trace m... | |
| Record cleaning formula using Triton X-100 b. 10: Water-soluble (lipid/oil-insoluble) Just to clarify, it should read as follows: b. > or equal to 10: Water-soluble (lipid/oil-insoluble) Sorry for any confusion. Data comes from Hydrophilic-lipophilic balance - Wikipedia | |
| Record cleaning formula using Triton X-100 @toddnlg, If you first add alcohol to water and then add the surfactant, the surfactant will not go into solution quickly, it will go through the solution like a stone. If you add 15-S-9 to DIW, it begins dissolving on contact, one of the benefit... | |
| Record cleaning formula using Triton X-100 @toddnlg, The 20% IPA and 0.02-0.05% TX100 in distilled water listed by @lewm is a good detergent receipt, but it requires a rinse - it's not a no-rinse formula. One note of caution - the above blend with 20% IPA is intended for small quantit... | |
| Record cleaning formula using Triton X-100 @toddnlg, The 20% IPA and 0.02-0.05% TX100 in distilled water listed by @lewm is a good detergent receipt, but it requires a rinse - it's not a no-rinse formula. A key property of nonionic surfactants is critical micelle concentration (CMC). S... | |
| Perfect Vinyl Forever @taww, Purchase distilled water from your local grocery store. |