Search found 290 matches

by terkio
Sat Mar 13, 2021 10:13 am
Forum: The Peabody Lounge
Topic: Entropy
Replies: 1296
Views: 603720

Re: Entropy

Beware of Aluminium cookware. It is a known trouble with acidic food.
It seems it can be a serious health hazard. Could start an Alzheimer condition.
I am ditching all aluminum stuff and only keep stainless steel and cast iron.
by terkio
Sun Mar 07, 2021 9:25 am
Forum: Document
Topic: Vintage Digital Clock Circuits
Replies: 24
Views: 56716

Re: Vintage Digital Clock Circuits

Beautiful clok all designed and made of your own using RTL logic. This reminds me my first digital design with DTL logic to make a test equipment for a X Y plotter that basically had two ten bits counter. That was using boards of discrete components. Such boards were. 2 JK flip flop 6 Nand I was alr...
by terkio
Sun Mar 07, 2021 8:54 am
Forum: Document
Topic: Vintage Digital Clock Circuits
Replies: 24
Views: 56716

Re: Vintage Digital Clock Circuits

Beautiful clok all designed and made of your own using RTL logic.
by terkio
Sat Feb 20, 2021 3:46 am
Forum: The Peabody Lounge
Topic: Gentle persuasion over time
Replies: 184
Views: 115209

Re: Gentle persuasion over time

My heat pump works much better with 30's outdoors than teens. JR That is the big trouble with air air heat pumps, the efficiency drops at lower air temperature. That is a bit paradoxical, it is good when it is not so cold outside. It is even worse, at very low temperatures; The outdoor heat exchang...
by terkio
Fri Feb 05, 2021 12:42 pm
Forum: The Peabody Lounge
Topic: Entropy
Replies: 1296
Views: 603720

Re: Entropy

The Entropy here, is inexplicable.
http://twinfalls.free.fr/Inexplicable.mp4
by terkio
Wed Feb 03, 2021 7:43 am
Forum: The Peabody Lounge
Topic: digital thermometers.... arghhh
Replies: 21
Views: 33435

Re: digital thermometers.... arghhh

Always wrong...
Is that from bad measurements or bad software ?

May be, there is an update available to hopefully turn it into a Quite right ?
by terkio
Sun Jan 31, 2021 7:20 pm
Forum: The Peabody Lounge
Topic: beverly hillbilly storm windows and cybernetic heat control
Replies: 37
Views: 85060

Re: beverly hillbilly storm windows and cybernetic heat control

I have some spare GFCI outlets in my stash, so the outlet by my bed now looks like a good candidate for GFCI. JR I searched to know what a GFCI is. I found a lengthy description that keeps repeating it protects from faults but nothing really clear ( or I was not patient enough ). In France we have ...
by terkio
Thu Jan 28, 2021 4:38 am
Forum: Test, Measurement and Repair
Topic: how to test relays for phono signals
Replies: 15
Views: 39549

Re: how to test relays for phono signals

crin wrote: is there a particular reason why you suggest the 1510 instead of the 1512?
The datasheet is clear.
Here high gain is needed.
by terkio
Sat Jan 23, 2021 2:47 pm
Forum: The Peabody Lounge
Topic: digital thermometers.... arghhh
Replies: 21
Views: 33435

Re: digital thermometers.... arghhh

JR. wrote:
Sat Jan 23, 2021 2:21 pm
I notice that some new weather remotes track barometric pressure too (mine doesn't)... it seems temp, humidity, and barometric pressure should be enough information to predict weather.

JR
Barometric pressure is the most important.
by terkio
Fri Jan 22, 2021 4:36 pm
Forum: Pro Audio Design
Topic: Super Low Distortion Ultra Pure Audio Oscillators Revisited
Replies: 132
Views: 175997

Re: Super Low Distortion Ultra Pure Audio Oscillators Revisited

For the balanced only version, I would manage going from 4 caps to only one, by means of footprints to allow the cap to jump over the J1 node.