antinn

Responses from antinn

Ultrasonic Cleaning Machine
@oldaudiophile,  Watching the video, the rotation appears to be about 6-rpm, and from this site, Knosti Disco-Antistat Ultrasonic 2.0 | MUSIC STORE professional, the power supply is 12V & 3A = 36-watts as you indicate.  The Knosti appears to ... 
Ultrasonic Cleaning Machine
Here is the official German site for the Knosti Disco-Antistat Ultrasonic 2.0 record cleaning machine - Knosti Disco-Antistat Ultrasonic 2.0 | Ultrasonic cleaner for vinyl records and here is a good review of the unit with lots of photos - DISCO-A... 
Vinyl Care
@richardbrand, The quote from book is from THE WEAR AND CARE OF RECORDS AND STYLI, by Harold D. Weiler, 1954.   The diamond dust is of no consequence - it is very fine sub-micron that really has no impact to record playback.  As I say in the boo... 
Vinyl Care
@dogberry, No, GruvGlide is nothing like LAST.   If this is still the ingredients of GruvGlide - Gruv Glide Ingredients Revealed- Vinyl Engine, it's an antistatic spray.  Quaternary ammonium compounds (QUATs for short) are cationic surfactants wh... 
Vinyl Care
@billstevenson,  Thank-you for the acknowledgement but let us not forget the contribution that @whart (Bill Hart) made in publishing the book and making it available for free through his site The Vinyl Press -.   Otherwise, please remember what ... 
Vinyl Care
@orthomead,   It works by creating an ozone layer above the LP which eliminates static.  Just to clarify, what neutralizes the static on the record is the ionized air that the device produces when it creates the blue-arc.  The same concept of ... 
Recorded Cleaning Machnies
@tablejockey, For the price, the HumminGuru Nova has an updated higher operating frequency  FYI, the new HG-Nova does not use a higher frequency, it's the same kHz and power as the original.  Download and compare the two operating manuals: Hum... 
Recorded Cleaning Machnies
@gano,  I want to buy the one that does most of the job. Sounds like the vacuum based would be it. For old, used records yes.  However, you still need to perform multiple steps: Step 1:  pre-clean with a detergent solution; I recommend 0.5% A... 
Vinyl Care
@puptent,  Tergikleen is like Kodak Foto Flow, a wetting and flow aid, non detergent. Actually, both are nonionic surfactants which at low concentration reduce the surface tension of water ergo wetting.  But at higher concentrations, nonionic ... 
Recorded Cleaning Machnies
@whart,  Bill what you said is correct.  To amplify, Industry testing has shown that for low kHz machines (< than about 60-kHz), if the flow in the tank is >50% of the tank-volume/min the cavitation intensity drops off very quickly.  As the... 
Vinyl Care
@richardbrand, ultrasonic cleaning is the best way to dig contaminants from deep in the groove UT cleaning is but one way to clean a record.  As the book says Chapter XII about the manual-sink process that uses 3 chemicals with one being a wea... 
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...