Hi there, Id like to build the circuit in the link below. I've had a crack but my skills dont stretch far beyond soldering and identifying basic components.
I ordered all the parts and dropped them into a board and soldered. The LED lights before I set the switch to ON and then it does pulse but never goes into AUTO OFF or ALTERNATE mode. Can anyone suggest help (appreciate that's difficult remotely). If not is there somewhere I can send it or pay someone to build it for me? Any help would be appreciated (someones sleep depends on it ) Thanks

http://www.learningelectronics.net/circuits/sleeping-aid-schematic-circuit-diagram.html

 

Welcome to AAC.

Does the circuit otherwise work as intended or do your worries about the LED keep you awake?

 

Do you find it easy to drop off in a tent?

 

Hi, thanks for the welcome.
The presence of the LED doesn't worry me, it's the fact that the LED does not change after the 15/30/60 mins as the text suggests, that makes me think I have made mistakes. Plus the LED illuminates even when the 4 position switch is set to off. Hope that explains, thanks

Thanks, what does camping have to do with it?

 

From your link:
"Many people experienced sleeping well in natural surroundings, into a tent or a wooden hut. This fact is due not only to the healthy atmosphere but also from our unconscious ability to perceive natural Earth's magnetic-fields. The circuit generates this type of Geo-magnetic-fields and lets us perceive them: in this manner our brain is surrounded by an ideal environment for a sound sleep."

So this device is intended to simulate the great outdoors but if being outdoors doesn't induce sleep for you then this isn't going to help you.

 

Plus the LED illuminates even when the 4 position switch is set to off.

Then the power switch is not wired correctly to start.
SG

 

Thanks SG. So I removed SW1a/b and connected the 9v battery directly to the +/- rails on the board the LED illuminated and stays (no pulse). I then linked IC2a pin 1 to pins 1, 2 and 3 of IC1 separately but this had no affect on the LED (it stays constantly illuminated).

 

So I removed SW1a/b and connected the 9v battery directly to the +/- rails on the board the LED illuminated and stays (no pulse). I then linked IC2a pin 1 to pins 1, 2 and 3 of IC1 separately but this had no affect on the LED (it stays constantly illuminated).

The LED is driven by the oscillator circuit in IC1. What you did would have no effect on the LED.
If the circuit is wired correctly then connecting the anode of D1 and pin1,2 of IC2 to 9 volts should turn the LED off.
SG

 

Is it driven by IC1 or IC2?
Anything else I can do to trace the fault?
Thanks again

 

Is it driven by IC1 or IC2?

Actually by both. Try this:
Remove S1A.
Close S2
Connect the junction of pins1 and 2 on IC2 to +9 volts.
LED should be OFF.
SG

 

From your link:
"Many people experienced sleeping well in natural surroundings, into a tent or a wooden hut. This fact is due not only to the healthy atmosphere but also from our unconscious ability to perceive natural Earth's magnetic-fields. The circuit generates this type of Geo-magnetic-fields and lets us perceive them: in this manner our brain is surrounded by an ideal environment for a sound sleep."

So this device is intended to simulate the great outdoors but if being outdoors doesn't induce sleep for you then this isn't going to help you.

I have never heard of any kind of legitimate research to even suggest this idea has any foundation supported by legitimate data and is anything other than incredibly speculative - "this fact is due not only to the healthy atmosphere but also from our unconscious ability to perceive natural Earth's magnetic-fields."

First, with the potential exception of a protein in the eyes, there is no evidence that I have ever seen that humans can perceive magnetic fields at the strength of the Earth's magnetic fields as described.

By making it an "unconscious" ability says what exactly - that we can't demonstrate that it is perceived except by enhancing sleep and if it doesn't enhance sleep then those poor sots must not have the "unconscious" ability.

By saying that it is not just the natural sounds, it is nicely confounded...it is not just the conscious but also the unconscious.

Perhaps it should be believed because it is "based on German papers"....which are not cited.

There is no doubt that some animals can perceive the Earth's magnetic fields. Even cows do some things suggesting that they also can perceive such fields. But not humans. If anyone has such evidence, please let me know as I would like to educate myself on that.

Beyond simple perception, can anyone provide any real evidence that such fields, like what is generated by the circuit, facilitate sleep?

Sorry, but I can't read something like that and not notice the, very conscious, stink of BS.

 

I am calling hog wash. Don't waste your time or your money. That little circuit isn't going to be able to produce enough of a magnetic field to get through your pillow let alone your skull. And even if it was able what medical proof is their that it is going to work? It is creating an electromagnetic field. Do you have a way to measure to see if it is working at all?

Get yourself a pink noise generator app for you phone it helps me. Take a couple of melatonin tablets before bed. That will go a lot further for sleep then that snake oil gizmo is going to do.

 

I have never heard of any kind of legitimate research to even suggest this idea has any foundation supported by legitimate data and is anything other than incredibly speculative - "this fact is due not only to the healthy atmosphere but also from our unconscious ability to perceive natural Earth's magnetic-fields."

First, with the potential exception of a protein in the eyes, there is no evidence that I have ever seen that humans can perceive magnetic fields at the strength of the Earth's magnetic fields as described.

By making it an "unconscious" ability says what exactly - that we can't demonstrate that it is perceived except by enhancing sleep and if it doesn't enhance sleep then those poor sots must not have the "unconscious" ability.

By saying that it is not just the natural sounds, it is nicely confounded...it is not just the conscious but also the unconscious.

Perhaps it should be believed because it is "based on German papers"....which are not cited.

There is no doubt that some animals can perceive the Earth's magnetic fields. Even cows do some things suggesting that they also can perceive such fields. But not humans. If anyone has such evidence, please let me know as I would like to educate myself on that.

Beyond simple perception, can anyone provide any real evidence that such fields, like what is generated by the circuit, facilitate sleep?

Sorry, but I can't read something like that and not notice the, very conscious, stink of BS.

You aren't looking at it. You sense it. What a bunch of BS.

Many people experienced sleeping well in natural surroundings, into a tent or a wooden hut. This fact is due not only to the healthy atmosphere but also from our unconscious ability to perceive natural Earth's magnetic-fields. The circuit generates this type of Geo-magnetic-fields and lets us perceive them: in this manner our brain is surrounded by an ideal environment for a sound sleep. (N.B. Basic ideas for this circuit are coming from German papers).

How on earth can anyone not find that statement hilarious?

BTW I have an awful time sleeping in a tent so, so much for the "Geo-magnetic-fields" theroy.

 

I am calling hog wash.

I was trying to be gentler.

 

I was trying to be gentler.

 

The circuit's beneficial effect is dubious at best (unless there is a placebo effect), but also very zoological.
So far we have:
Snake oil,
BS,
Hog-wash.

 

I was trying to be gentler.

Frankly, I can't see how this would be an effective method for cleaning pigs.

 

The circuit's beneficial effect is dubious at best (unless there is a placebo effect), but also very zoological.
So far we have:
Snake oil,
BS,
Hog-wash.

Add FM to the list.

 

Thanks for everyone's replies, I'm surprised it's generated so much interest and I value the all feedback. I suffer from severe sleep deprivation and anxiety, have done for years. It's very unpleasant and I've tried just about everything you can think of....this is actually my last resort. I appreciate there's no proof this will have any effect but I'd like to try......tying itself may actually make me tired and I'll take that. Thanks again folks

 

I appreciate that you have difficulty sleeping. But have you tried that device? You never answered my question. Does it work as advertised?

Second, such medical quackery never do what they are claimed to do in legitimate studies. The biggest risk is that a naive user will delay seeking real medical/psychological treatment and end up far worse for the delay. I hope you get the help you need. You will not get that here, even if the device enters those modes you suggest.

As for your original question, a NAND gate is only OFF when both inputs are on. Otherwise, the LED will be on.