Digest for sci.electronics.repair@googlegroups.com - 8 updates in 2 topics

jurb6006@gmail.com: Sep 20 09:44AM -0700

>"electronically controlled units work much better than mechanical humidistats "
 
Until they break. A mechanical one has a strand of soemthing in it that can be replaced, the spring can be cut down or stretched to adjust if it changes over time. The corroded wires can be replaced.
 
If the chip goes bad and it has a number on it like XD333YTOT23AAA1902**/A to buy a whole new dehumidifier and throw that one in the dumpster, Freon and all.
 
And they probably get a fucking energy star compliance certification. And your money went to a country that uses predatory trade practices. And the landfills fill up until this country is nothing but a landfill.
 
But it's more important to hold it between 71 and 75 % because 69 and 77 % would be totally unacceptable.
 
Right.
 
That's not Luddite, that's green and it is actually conservative, like to conserve.
jurb6006@gmail.com: Sep 20 09:52AM -0700

>"should I ask why you can't use any of those? "
 
Look, ICs are wonderful and should be used wherever they are needed. Now you want your food to spoil because some static electricity got into the works somehow ? Would you like to pay to rebuild a water valve, possibly fifty bucks if they even did that, instead of replacing a 5 cent washer ? How about people who wipe their ass after they stand up and the toilet goes kawoosh and they have to sit down to make it flush AGAIN to get the paper down " That really saves water, right ?
 
How about cars that can be hacked into and the hacker can control the brakes and even possibly the steering ? (it has been done but not the steering yet as far as I know) How about people using shodan and looking in on your baby monitor ? Or gaining control over your furnace and microwave, maybe a few other things like your home security system ?
 
I think it is great that you can see your security cameras on your phone, but to be able to disable the system ? How about a phone call and just give them the damn code ?
makolber@yahoo.com: Sep 20 11:36AM -0700

How about people who wipe their ass after they stand up and the toilet goes kawoosh and they have to sit down to make it flush AGAIN to get the paper down
 
 
lol
 
when the poster asked what next will be digital.....
 
as a joke i was thinking "toilet paper'
 
but you are right....they already did that!
 
m
tabbypurr@gmail.com: Sep 21 01:09AM -0700

On Thursday, 20 September 2018 15:21:04 UTC+1, John-Del wrote:
 
> > electronically controlled units work much better than mechanical humidistats
 
> If you need to keep humidity to within a fraction of a percent perhaps, but in my experience, electronic controls add complexity and complexity means trouble.
 
> If this dehumidifier was used to keep someone's basement dry and sweet smelling, it would be far better off with a quality mechanical humidistat that kept the humidity within a few points either way. As it is, the poster mentioned that this needed tact switches, something a mechanical unit wouldn't have.
 
but what you describe is not the options. Mechanical humidistats are dire in terms of RH control, and not long term reliable. Electronics are accurate and at least some survive long term. I far prefer bimetal thermostats for general heating use, but humidistats are quite a different animal.
 
 
NT
tabbypurr@gmail.com: Sep 21 01:14AM -0700

On Thursday, 20 September 2018 17:44:33 UTC+1, jurb...@gmail.com wrote:
nt:
 
> >"electronically controlled units work much better than mechanical humidistats "
 
> Until they break. A mechanical one has a strand of soemthing in it that can be replaced, the spring can be cut down or stretched to adjust if it changes over time. The corroded wires can be replaced.
 
have you rebuilt a mechanical humidistat? It's nothing like as easy as a bimetal stat.
 
 
 
> But it's more important to hold it between 71 and 75 % because 69 and 77 % would be totally unacceptable.
 
> Right.
 
> That's not Luddite, that's green and it is actually conservative, like to conserve.
 
electronic RH control has more chance of surviving long term than a bit of plastic with almost no movement and almost no tension operating a switch mechanism that's barely functional because it's hopelessly weakly operated.
 
 
NT
tabbypurr@gmail.com: Sep 21 01:15AM -0700

On Thursday, 20 September 2018 17:52:33 UTC+1, jurb...@gmail.com wrote:
nt:
 
 
> Look, ICs are wonderful and should be used wherever they are needed. Now you want your food to spoil because some static electricity got into the works somehow ? Would you like to pay to rebuild a water valve, possibly fifty bucks if they even did that, instead of replacing a 5 cent washer ? How about people who wipe their ass after they stand up and the toilet goes kawoosh and they have to sit down to make it flush AGAIN to get the paper down " That really saves water, right ?
 
> How about cars that can be hacked into and the hacker can control the brakes and even possibly the steering ? (it has been done but not the steering yet as far as I know) How about people using shodan and looking in on your baby monitor ? Or gaining control over your furnace and microwave, maybe a few other things like your home security system ?
 
> I think it is great that you can see your security cameras on your phone, but to be able to disable the system ? How about a phone call and just give them the damn code ?
 
unfortunately you snipped everything proceding, so who knows what we were saying. I do as a general principle agree with the use of reliable equipment where it's as cheap as junk. Only a fool wouldn't.
 
 
NT
Phil Hobbs <pcdhSpamMeSenseless@electrooptical.net>: Sep 20 04:20PM -0400

On 9/19/18 9:38 PM, OGER wrote:
 
> or
>   ?  whatever name it is sold under.
 
> I want to modify it for my special application.
 
Such as an IED, maybe?
 
Cheers
 
Phil Hobbs
amdx <nojunk@knology.net>: Sep 20 08:42PM -0500

On 9/19/2018 8:38 PM, OGER wrote:
 
> or
>   ?  whatever name it is sold under.
 
> I want to modify it for my special application.
 
I had the original Harbor Freight unit pretty well figured out,
and made several modifications.
Then they went to surface mount parts and changed the type of circuit,
and the parts considerably!
I gave up on deciphering the new unit.
If you get info, I'm interested.
Mikek
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