antinn

Responses from antinn

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 ... 
Ultrasonic record cleaners
@drbond, If you were to download the book the answers would be in Chapter VIII, IX and XIV but I suspect you did not download the book.  So, accommodating this: 1.  First - Dawn may be a great dish detergent and safe for your hands and cleaning ... 
Ultrasonic record cleaners
FWIW, One of keys to successful use of UT is bath management - how long is the bath good for use? There are a number of variables. Detritus being removed from a record are either insoluble (i.e. particles) or soluble such as mineral salts and pr... 
Ultrasonic record cleaners
@pindac, When you cleaned the camera lens did you use the tiger-cloth dry, or did you use your lens cleaning solution and try to dry with the tiger-cloth?  When you use sponge & tiger-cloth for record drying, do you wear gloves?   What spec... 
Ultrasonic record cleaners
@dogberry, The book addresses Degas as follows: XIV.2.1 Dissolved Gases & Degas: Fluids exposed to air will absorb air and the solubility of air in water is inversely proportional with temperature and can decrease by about 25% between 20°C/6... 
Ultrasonic record cleaners
@terry9, WRT to cleaning the Tiger-cloth - the only thing I do is once dry - I shake it out.  Used only during to assist with drying the record after DIW rinsing, the Tiger-Cloth only sees DIW.  So, after use, I hang to dry and then shake it out ... 
Ultrasonic record cleaners
@drbond, Good to hear of the improvements. The book is only available free by download, Precision Aqueous Cleaning of Vinyl Records-3rd Edition - The Vinyl Press. Bill Hart @whart runs a tight ship as they say, and I can only guess that the book...