Next video: cleaning heads in fragly brewed IPA (the beer). I bet it would work too. Ultrasound in hot solvent cleans stuff that no other method can. Marc
> On Jan 27, 2018, at 5:26 PM, Adrian Stoness via cctalk > <[email protected]> wrote: > > yea ipa's are to bitter > > have u had a saison though? > > On Sat, Jan 27, 2018 at 6:38 PM, dwight via cctalk <[email protected]> > wrote: > >> I don't like most IPAs. I do like lagers and most ale's like Sierra >> Nevada's. >> >> Dwight >> >> >> ________________________________ >> From: cctalk <[email protected]> on behalf of Paul Berger via >> cctalk <[email protected]> >> Sent: Saturday, January 27, 2018 12:54:59 PM >> To: Henry Bond via cctalk >> Subject: Re: >> >> Yeah for me IPA=India Pale Ale >> >> >>> On 2018-01-27 2:45 PM, Henry Bond via cctalk wrote: >>> Isopropyl alcohol would be a sensible guess, I've not seen that >>> abbreviation before though . >>> >>> - H >>> >>> On Sat, Jan 27, 2018, 18:24 Adrian Stoness via cctech < >> [email protected]> >>> wrote: >>> >>>> ipa as in beer? >>>> >>>> On Sat, Jan 27, 2018 at 12:17 PM, Carl Claunch via cctech < >>>> [email protected]> wrote: >>>> >>>>> The IPA is heated to 60C before the ultrasound is able to remove the >>>> oxide >>>>> remnants, FWIW. >>>>> >>>>> While we can often get the entire smooth surface of the head clean with >>>>> swabs and IPA, it is very difficult to clean all the material that >> forms >>>> in >>>>> the cruciform trench recessed into the head (where the read/write and >>>> erase >>>>> coil poles are visible). >>>>> >>>>> Heads can seem clean to the naked eye, but a good stereo microscope >> will >>>>> insure that you have a clean and smooth surface. >>>>> >>>>> Regards, >>>>> Carl >>>>> >>>>> Date: Fri, 26 Jan 2018 12:15:34 -0800 >>>>>> From: Fritz Mueller <[email protected]> >>>>>> To: "General Discussion: On-Topic and Off-Topic Posts" >>>>>> <[email protected]> >>>>>> Subject: ultrasonic cleaning for disk heads >>>>>> Message-ID: <[email protected]> >>>>>> Content-Type: text/plain; charset=utf-8 >>>>>> >>>>>> I watched with great interest one of curiousmarc?s recent Alto videos, >>>>>> wherein they clean a Diablo drive head ultrasonically. I?ve been >>>>>> struggling a bit with my restored RK05 drives to completely clean the >>>>> heads >>>>>> after minor head crashes. Not being able to get them really sparkling >>>>>> clean makes me always worried about running the drives for more than a >>>>> few >>>>>> minutes at a time, and a little nervous every time I spin them up?. >>>>>> Scrubbing and scrubbing and scrubbing with IPA and kimwipes just >>>> doesn?t >>>>>> seem to get all the crud off. >>>>>> >>>>>> I do have an alignment pack that I could use to re-align the heads >>>> after >>>>>> removing them for a proper cleaning this way. Decent ultrasonic >>>> cleaners >>>>>> aren?t terribly expensive and might be nice to have around the shop >>>>> anyway >>>>>> (I could also do all my eyeglasses :-) >>>>>> >>>>>> In the video, the heads are submerged in IPA in a glass cylinder, >> which >>>>> is >>>>>> then placed in the ultrasonic bath. >>>>>> >>>>>> Has anybody on the list here done this and have tips/advice beyond >> what >>>>>> can be seen in the video? It looked very effective! I?m also having >> a >>>>>> little trouble sourcing the squat form glass graduated cylinder >> online. >>>>>> >>>>>> cheers, >>>>>> ?FritzM. >>>>>> >>>>>> >> >>
