antinn
Responses from antinn
| SUT - electrical theory and practical experience @rauliruegas, You have taken what I said completely out of context. What I was trying to say is that based on the two values you provided which was only the slew rate and the bandwidth, that by the equations the amp would become unstable at a sp... | |
| SUT - electrical theory and practical experience @lewm, Not to take too much of a tangent from the intent of this thread, but this article should clarify sound intensities in watts per meter squared with the more commonly used sound intensity levels in decibels (dB) - Sound Intensity and Sound ... | |
| SUT - electrical theory and practical experience @rauliruegas, For the record and no pun intended, TI did not exclude wide bandwidth MM. Their written statement was "This is generally not a problem with moving magnet cartridges, since they are usually severely band-limited above 20 kHz...". O... | |
| SUT - electrical theory and practical experience Not proclaiming to be any expert, but when discussing 'rise time' the traditional engineering parameter s 'slew-rate' dvt/dt = X-volts/micro-sec. And once you are talking about slew-rate there is some pretty established science associated with it... | |
| Will this stuff ruin my records? FWIW - this is what is in Dawn - CPID (whatsinproducts.com). There are 20 ingredients of which only 4 are doing any cleaning - and they are anionic and nonionic surfactants and alcohol. The product is not naturally thick - other ingredients includ... | |
| Will this stuff ruin my records? @rvpiano, You may wish to reconsider - Dirt accumulating on stylus after record cleaning | Steve Hoffman Music Forums - see post #20. | |
| SUT - electrical theory and practical experience Dave Slagle is well a known and respected manufacture of custom SUTs and does an excellent description of the theory and details - intact audio. Beyond that he winds with both copper and silver, and each will have a different perspective to the m... | |
| Ultrasonic record cleaners @drbond Cloud point is not unique to Triton X (100 or 114), it's a property of nonionic surfactants, the book: VIII.2.4.c Nonionic surfactants for the most part do not ionize in aqueous solutions so that the hydrophilic head has a neutral charg... | |
| Ultrasonic record cleaners @drbond Kodak Photo Flow 200 is the wrong fluid to be used in a heated UT - read the book VIII.7; KODAK™ PHOTO-FLO 200: excerpt: " If the surfactant is Dow™ Triton™ X-114, the surface tension will be about 31 dynes/cm, the CMC will be 120 ppm, b... | |
| Ultrasonic record cleaners @drbond The spacing is fine. BUT you have a 6L tank. From a previous post you stated: "4. I slowed the rotation of the motor to about 3 cycles per minute (this is using a low voltage adjustable DC adapter set at its lowest 3V), which is as sl... | |
| Ground voltage!! The 80VAC may be a bit low - How to Test for Ground | DoItYourself.com; Diagnosing Power Problems at the Receptacle | Fluke. Ground to hot should read near same as hot to neutral while ground to neutral should read <2VAC (mine read ~9mVAC) | |
| Ultrasonic record cleaners @pindac, Thank-you for the compliments. FYI - someone did a comparison of the PACVR Manual Method, and results are summarized here: Do I need to clean my LP's? | Page 2 | Audio Science Review (ASR) Forum in Post #31. However, one better th... | |
| Ultrasonic record cleaners Bill (@whart) Tim was first using a no-rinse formula of ~2.5%i-IPA and ILFOTOL and filtered. ILFOTOL is not bad, but it does foam a lot and the delivered concentration can vary, and they did reformulate making what exactly you are working with t... | |
| Ultrasonic record cleaners For those that may be interested, here is a procedure that was developed for the Humminguru: -Buy Tergitol 15-S-9 Tergitol 15-S-3 and 15-S-9 Surfactant | TALAS (talasonline.com) -Buy this dropper bottle - Amazon.com: Nalgene Plastic Drop Bottle ... | |
| Ultrasonic record cleaners @drbond, Thank-you for the compliment. Regarding which kHz is better for LP cleaning; ideally you want both 37-48kHz for preclean and then 80-120kHz for final clean since each frequency targets different type detritus as illustrated in the book ... |