Splattering solder into eye?

Started by Peter Hucker in sci.electronics.basics1 year ago 51 replies

Has anyone ever actually been unlucky enough to get solder splattering into their eye? I've had it hit my leg, hand, and face, but never in my...

Has anyone ever actually been unlucky enough to get solder splattering into their eye? I've had it hit my leg, hand, and face, but never in my eye. How bad is it? -- http://www.petersparrots.com http://www.insanevideoclips.com http://www.petersphotos.com Confuscious say: "War doesn't determine who's right. War determines who's left."


how to reduce the mains voltage

Started by default in sci.electronics.basics1 year ago 26 replies

I have an older window air conditioner that I'd like to hang on to for a few more years. The name plate says it is 220 VAC and since the power...

I have an older window air conditioner that I'd like to hang on to for a few more years. The name plate says it is 220 VAC and since the power company went through and upgraded the distribution network and replaced HT and transformers my service which had been running 210-220 volts is now a steady 250 volts and my bill is up ~15%. The increased consumption is tied to how much I run the AC ...


results of AC buck tranny

Started by default in sci.electronics.basics1 year ago 8 replies

I wired a 24VAC transformer to my Air Conditioner to lower the incoming line voltage to 220 from ~250 VAC. The old AC was pulling 2100+ watts...

I wired a 24VAC transformer to my Air Conditioner to lower the incoming line voltage to 220 from ~250 VAC. The old AC was pulling 2100+ watts worst-case and went to 1700, with the added transformer. Other observations: It uses ~1500 in the mornings when the differential between inside and out is close (all readings with the compressor running). During the day when the power was up ...


Solder these 2 wires while being able to slip the shrink tubing over the soldered connection

Started by AK in sci.electronics.basics1 year ago 7 replies

I would like to learn how to solder these 2 wires while being able to slip the shrink tubing over the soldered...

I would like to learn how to solder these 2 wires while being able to slip the shrink tubing over the soldered connection. Thanks. https://imgur.com/a/9z3z294


Solid state relay questions

Started by Anonymous in sci.electronics.basics1 year ago 8 replies

My water comes from a well. When the well was drilled I had only built my shop and so the well is now powered by my shop. The pressure tank...

My water comes from a well. When the well was drilled I had only built my shop and so the well is now powered by my shop. The pressure tank and switch is also at the shop. Now that the house is built I need to power the well from the house. This is fine but I am not gonna move the pressure tank and the pump switch must be at the tank for proper operation. The problem I must address i...


Who knows GPS antennas?

Started by Anonymous in sci.electronics.basics1 year ago 2 replies

I have been looking online but there seems to be, for a lot of the antennas, an assumption of prior knowledge. That I don't have. What I...

I have been looking online but there seems to be, for a lot of the antennas, an assumption of prior knowledge. That I don't have. What I want to do is survey some of my property line. Mainly so I know about where it is because about 25% of the length is ambiguous. I can pay a surveyor to do the job but it would cost about 4 thousand bucks. Of course a proper survey would be more ...


OT: Skype Whiteboard / IDroo

Started by Jim Thompson in sci.electronics.basics1 year ago 10 replies

A client wants to use Skype Whiteboard / IDroo. Looks gruesome to do sketches with a mouse :-( Years ago I remember a tablet by Kurta (I...

A client wants to use Skype Whiteboard / IDroo. Looks gruesome to do sketches with a mouse :-( Years ago I remember a tablet by Kurta (I actually designed a chipset for it :-) Does any such device exist today where you could use a stylus? ...Jim Thompson -- | James E.Thompson | mens | | Analog Innovat...


Virtual PID Controller Would Optimize Shutdowns In Pandemics, Reduce KornspiraSCHEE Theories

Started by Bret Cahill in sci.electronics.basics1 year ago 10 replies

"Abbott didn't properly calculate lag time after lifting...

"Abbott didn't properly calculate lag time after lifting restrictions." https://www.businessinsider.com/how-texas-coronavirus-outbreak-got-out-of-control-2020-7 It's easy to overshoot as well. The PID output would be presented to the public, so the public could better understand the various degrees of shutdown. There might be 50 shades of shutdown. Bret Cahill


Alternator Output Drops Above 45 C After 75 km

Started by Bret Cahill in sci.electronics.basics1 year ago 38 replies

After 50 - 75 km driving the ignition system starts to fail. Pull over and wait 2 minutes and then another 50 km is possible _without...

After 50 - 75 km driving the ignition system starts to fail. Pull over and wait 2 minutes and then another 50 km is possible _without lights_. It's hard to imagine anything cooling off in just 2 minutes. There must be some thresh hold where the rectifier or voltage regulator is really sensitive to even small changes in temps. Bret Cahill


Re: how to bypass dremel tool internal variable speed control?

Started by Tinydikswinger in sci.electronics.basics1 year ago

replying to Claude Desjardins, Tinydikswinger wrote: 120 psi hell if you are running the HF junkers have some fun and give em @ 180 -190psi...

replying to Claude Desjardins, Tinydikswinger wrote: 120 psi hell if you are running the HF junkers have some fun and give em @ 180 -190psi ...They have a much diffrent sound at those pressures and the neighbors will all be over finding out jusy what the hell all that screaming is about. I usually run my high speed cutoffs and such that high but get good wheels because them Chinese garbage di...


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