Im visiting my momoinlaw maybe ill find some in this town.
On February 10, 2023 12:14:45 AM PST, Gregory McGill <arcadeshop...@gmail.com> wrote: >Also harbor freight has 99% > >On Fri, Feb 10, 2023, 12:05 AM Brian K. White <b.kenyo...@gmail.com> wrote: > >> At any hardware store in the paint section, or any paint store, it's >> called denatured alcohol not isopropyl. >> >> If you asked for isopropyl specifically, maybe you just got someone who >> didn't know enough, they might have looked for Drygas in the automotive >> section or actual isopropyl in the cleaning supplies or seasonal because >> they might have actually carried it just for the pandemic even though >> they normally don't carry that. >> >> Denatured isn't isopropyl, it's either ethanol or methanol, but it's a >> lot more readily available and cheaper and works fine for cleaning >> electronics. >> >> You can find 99.9% isopropyl for more $$ at electronics supply shops, >> which you may not have any near by. Micro Center usually has it in their >> maker section if you have one of those around. It's much more expensive. >> >> -- >> bkw >> >> On 2/9/23 20:10, Daniel L wrote: >> > OK, just got home from home depot. Had ammonia already in the garage, >> > and have purchased cleaning vinegar. Home depot couldn't seem to have >> > alcohol on hand and nor does lowes. Gonna try harbor freight next. >> > Distilled water from rite aid next. >> > >> > On 2/9/23 16:23, bir...@soigeneris.com wrote: >> >> >> >> You want to use at least 90% alcohol. No rubbing alcohol with stuff >> >> added to it. I use denatured alcohol from the hardware store 99.9%. >> >> >> >> Resolder the joints you need to. Don’t go crazy. Every joint you touch >> >> is a chance to mess something up. I have been soldering for 40 years >> >> and I live by this advice. >> >> >> >> Ammonia is available from any grocery in the cloths washing detergent >> >> isle. >> >> >> >> Jeff Birt >> >> >> >> *From:* M100 <m100-boun...@lists.bitchin100.com> *On Behalf Of *Daniel >> L >> >> *Sent:* Thursday, February 9, 2023 5:36 PM >> >> *To:* m100@lists.bitchin100.com >> >> *Subject:* Re: [M100] stupid move = expected results >> >> >> >> On 2/9/23 05:17, bir...@soigeneris.com wrote: >> >> >> >> There are two different causes of corrosion here. The battery has >> >> an alkaline electrolyte, after removing the battery neutralize the >> >> electrolyte left on the PCB with a mild acid like vinegar or >> >> citric acid. Then clean well. I like to remove the solder from >> >> components that have been affected and resolder. The corrosion >> >> will wick through the solder joint making it to the other side of >> >> the PCB and eating the via. >> >> >> >> Good thing I have citric acid. Can I use normal alcohol you get from >> >> the drug store? I will be re-soldering as many joints as possible to >> >> refresh them after forty years. >> >> >> >> >> >> The capacitor corrosion is much, much worse on the M100. Every >> >> M100 that has not already been recapped needs done. It is one of >> >> the few machines I always recap. The electrolyte in capacitors is >> >> acidic. After removing the capacitors scrape the worst of the >> >> corrosion off and then treat the area with a mild alkaline >> >> solution to neutralize any remaining acid (ammonia, etc.) Clean >> >> and repair damaged traces. >> >> >> >> Where do you get ammonia? >> >> >> >> I have covered this procedure in several videos. Go to YouTube and >> >> search for ‘HeyBirt!’. And from my channel page search for ‘Model >> >> 100’. >> >> >> >> I love your channel and have been a subscriber since before I got my >> >> first m100. Actually, I called and left you a voicemail the other day. >> >> >> > >> >> -- >> bkw >> >>
