Introduction: PSI Science Lamp

Picture of PSI Science Lamp

The PSI Science Lamp (old Telephone to God (TTG)) circuit provides several fertile areas of cutting edge research for readers to dabble in; from influencing the probability of decaying radioactive particles (quantum mechanics), aka mind's influence on nature and machines to precognition and telepathy.

The circuit can be used for testing PSI; precognition, telepathy and psychokinesis (PK). In a pinch, it can even be used as home radioactive bomb/fallout detector. And when not used in any of the above applications it's a truly random mood light with a very high coolness factor.

History of the PSI Lamp

When I designed this circuit I had thought it original to me. My company has turned this circuit into a small commercial product. A series of events cause me to look to see if a RNG had ever been connect to four different color lights to test for PSI and PK. Searching through the Internet I found that connecting a "Geiger counter" RNG, to a modulo four selector to four different color lights for the expressed purpose of testing PSI and PK had been done in the 1960's by Helmut Schmidt.

Journal of Applied Physics, Feb 1970 pg 462-468, ISSN: 0021-8979

Not only had my circuit been created before, but in almost the exact same manner.

Helmut Schmidt had made many RNG devices, this was only one of them.

PSI Science Lamp Disclaimer:

When used as a fortune telling device, ie, "PSI Science Lamp I make the following disclaimer. The PSI Science Lamp, is based upon the randomness of radioactivity, the user's interpretation of these random events is their own responsibility. The PSI Science Lamp is offered as an entertainment device ONLY! I do not accept any responsible for any results consequential or inconsequential from the use or misuse of this device.

Einstein is quoted as saying God does not play dice with the universe.To which Neils Bohr replied, Einstein, stop telling God what to do with his dice."

Our PSI Science Lamp relies on the randomness of radioactivity. The built in miniature Geiger counter detects background radiation. Background radiation consists of three sources: cosmic, terrestrial, and internal. Cosmic radiation comes from the sun and stars. Terrestrial radiation comes from low levels of uranium, thorium, and their decay products in the soil, air and water. Internal radiation comes from radioactive potassium-40, carbon-14, lead-210, and other isotopes found inside our bodies.

Connected to the built in Geiger counter is a PIC microcontroller that uses the random time interval between the detection of radioactive particles to trigger the selection of a random number between 1 and 4. The random numbers generated by our PSI circuit are truly random. The Random Number Generator (RNG) will produce approximately one to two random numbers every minute.

As stated, the PSI Science Lamp generates a random number one through four. Each number is assigned to a color LED that is displayed in our lamp unit attached to the phone. Number one is assigned the color (1 =) Red, two is assigned the color (2= ) Green, three is assigned the color (3 =) Blue and four is assigned the color (4 =) Yellow. Feel free to mix up and/or change the LED colors, as you desire.

Fortune Telling - To use this device as a fortune telling device, assign answer values to the LED colors; for instance red = No, green = Yes, Blue = maybe, and Yellow ask again later. Something like a color light magic 8 ball. Ask the universae a question and wait for the color light reply. Is this any better than a magic eight ball? That's for you to decide?

Other fun and useful applications:

PSI Testing

The PSI circuit can be used in the same manner as Helmut Schmidt's RNG device to test for precognition and psychokinesis.

Precognition Test - The PSI Science Lamp, displays one of four colored LED light in a truly random sequence. Here the experimenter tries to guess the next color that will be lite. By correctly guessing the next color to be displayed, statistically greater than chance (one in four) alone would account for then experimenters show precognition.

Psychokinesis (PK) - Influence of the Mind Over Machine: Helmut Schmidt PK experiments in the 1960's followed this procedure. The subject tries to make one color come out greater than what would be allowed by chance. If that color id outputted by the device statistically greater than chance would account for that the experimenter can show PK.

PEAR is an acronym for the Princeton Engineering Anomalies Research. This interpret group of people led by Robert G. Jahn studied the mind influencing the behavior of machines, and proved a statistically correlation.

Random Number Generator (RNG) - Our PSI circuit can generate truly random numbers. You may question the need for random numbers. True random numbers are useful for data encryption (cryptography), statistical mechanics, probability, gaming, neural networks and disorder systems, to name a few.

Mood Light: The randomly changing colors from the lamp are a soothing. You may consider the randomly changing colors as an example of the Universe talking even if no one is listening.

"Radioactivity Detector" The PSI circuit may be also be used as a nuclear bomb/fallout radioactivity detector. If the Led's start flashing at a greater rate of two changes per minute for any length of time, you may be experiencing higher than normal radioactivity in the area.

How Random Numbers are Generated:

The way the random number generator operates is simple to understand. However, its fundamental function is best described using a mechanical analogy. Imagine if you will a sequence of numbers painted on a revolving wheel. A pointer is fixed on the outside of the wheel pointing to the number at the top of the wheel. The wheel is set into motion, spinning very rapidly. Then at any given random moment the wheel is instantly stopped. The number under the pointer becomes our random number. Once read, the wheel is set back into motion.

The microcontroller program follows pretty close to the mechanically analog. The microcontroller spins the sequence of numbers; one thought four internally, in a for-next loop. The random point in time when the sequence of numbers is instantly stopped is generated by the detection of a radioactive particle by the tiny built-in geiger counter. The number is read, displayed via LEDs and sent out serially on the TTL port , if one wishes to perform other random number generator (RNG) experiments.

Please note: this video shows the PSI Science Lamp with radioactive element nearby to induce faster random number generation. When used under normal conditions, the PSI circuit will generally produce about 1 to 2 random numbers (color changes) a minute.

Step 1: Circuit

Picture of Circuit

The PSI Lamp Circuit may be build on a prototyping breadboard. Or a PSI Lamp Circuit KIT may be purchased from Images SI Inc. This shows the construction of the kit pcb.



Component / Modifier Qty Reference IDs


(1) 0.0047µF 12V C1

(1) 0.01µF 1 2V C2

(3) 0.01µF 1KV C3 C4 C6

(2) 0.1µF C5 C9

(1) 1000µF 16V C10

(1) 10µF 16V C11

(2) 22pF C7 C8

(4) RGBLED D3 D4 D9 D10

(2) 1N4007 Diode D2 D5

(2) 1N5281B ZENER D6 D7

(1) 1N914 Diode D1

(1) 5.1V ZENER Diode D8


(1) DC Power Jack P1

(4) 2N3904 NPN Q2 Q3 Q4 Q5

(1) IRF830 Q1

(1) 10K ¼W R10

(12) 150 ¼W R3 R4 R5 R7 R8 R9 R15 R16 R17 R18 R19 R20

(1) 15K ¼W 1 R1

(1) 1K ¼W R13

(1) 3.3M ¼W R12

(1) 330K ¼W R11

(1) 4.3K ¼W R6

(3) 4.7K ¼W R14 R21 R22

(1) 5.6K ¼W R2

(3) Switch SPDT S1 S2 S3

(1) GM Tube T2

(1) Mini Step-Up Trans T1

(1) 4049 U1a-f

(1) 7805 U4

(1) Rectifier U3

(1) PIC16F84 U2

(1) 16MHz XTAL X1

Step1: Building the PSI Science Lamp Circuit.

There are a few unique components to the electrical circuit. The first component is a miniature Geiger counter tube. The second is a mini-step up transformer. In addition a pre-programed 16F84 microcontroller is also available for this project. These components may be purchased from Images Scientific Instruments,

The hex file for the microcontroller is available for those you can program the 16F84 themselves.

The circuit schematic is shown in the illustrations. The 4049 Hex Inverting Buffer is set up as a square wave generator. The power MOSFET IRF830 switches the current on and off to the primary windings of the mini step up transformer. The output of the transformer is fed to a voltage-doubler consisting of two high voltage diodes D2 and D3 and two high voltage capacitors C4 and C5.
The high voltage output from this stage is regulated to 400 volts by using two zener diodes in series (D10 and D11).
The 400 volts regulated output connects to the anode of the miniature GM tube through a 4.7 mega-ohm current limiting resistor.
The cathode of the GM tube is the side with a wire attached to the inside wall of the glass tube. A 470K-ohm resistor is soldered to this end GM tube. A 5.1V zener diode is placed across the 470K-ohm resistor to limit the pulse output to 5.1 V. The output pulse is fed to the base of the 2N3904 transistor to buffer the pulse. The pulse from the 2N3904 passes through two inverting gates to the interrupt pin on the 16F84 microcontroller.
The microcontroller generates a random number between 1 and 4 each time it receives a pulse from the Geiger counter. That number is used to light one of the four LED colors. In the even that the same random number repeats, for instances the random number generator produces 2 then 2 again. The LED light will momentarily blink off before the second number is displayed.

Step 2: Enclosure

Picture of Enclosure

After you've finished the circuit, you need to house the circuit in an enclosure. You can use any enclosure large enough to house the circuit. I would recommend an enclosure with a transparent or translucent side(s) so that the color of the LEDs will be visible.

Images sells a small cube style enclosure with white translucent sides.

Step 3: Finishing Up

Picture of Finishing Up

We finish the project up by attaching power wires from a 9V DC wall transformer to our main circuit.

Upon power up the 16F84 microcontroller lights each LED color in sequence for about 1/2 second. Then all LEDs are turned off. When the first radioactive particle is detected one LED color will light depending upon which random number is generated. Radioactive particle detection on average occurs approximately one to two times a minute. One can increase the random number generation by placing a radioactive material close to the PSI Science circuit. The mini-geiger counter picks up the additional radioactivity and will begin generating hundreds of random numbers a minute.

A decal is available for the case.

Going Further:

There is a tremendous amount of information online relating to many PSI experiments one can carry out using a real Random Number Generator (RNG) used in the PSI Science Lamp circuit search terms: PEAR, Robert Jahn, Dean Radin, Global Consciousness Project.

This was my first Instructables, it was a bit rushed so please forgive any mistakes.

The serial port also requires a TTL Serial/USB cable to connect to a PC. I have written a few PC program for reading the random numbers from the circuit. The programs available are Random Walk, Tally, Ramblings, Color Screen. These programs are freely downloadable from Images SI Inc.

I will continue to develop this hardware and write supporting software.

I have just attached the Microcontroller source code for the Random Number Generation, for anyone who wishes to see it.


sofiadaepic (author)2014-04-18

oh how I love internet fights! *grabs popcorn*

Jareadx (author)2009-04-19

I don't believe that anyhting should be made to represent, to symbolise, or make fun of God. It needs to have a different name and have nothing to do with God.

Eirinn (author)Jareadx2009-04-20

Once "god" truly responds to my phone call i'll believe in him ;P until then get a sense of humour :)

sk8trboipyro (author)Eirinn2009-04-21


Eirinn (author)sk8trboipyro2009-04-25

Actually i'm an atheist, but if a voice starts booming from the heavens i might be inclined to change my point of view if you know what i mean XD I don't see it happening and neither do i believe it will, so atheist for me :)

listentome (author)Eirinn2014-02-28

you need to stop mocking god and read the bible....thats what happened to paul in the bible and people were blinded by a great light from heaven

Eirinn (author)listentome2014-02-28

I don't need to start or stop anything and not do I care about what happened to a person in a book. Until I, myself, am blinded by said light my comment still stands.

Derin (author)Eirinn2009-06-23

*throws megaphone and ipod couple into heaven*

sk8trboipyro (author)Eirinn2009-04-25

Me too, I just like saying that word!

jiovine (author)sk8trboipyro2009-04-25

Me, I thought, "Telephone To God" had a ring to it.

jiovine (author)Eirinn2009-04-25

Yeah agreed. Booming voice from heaven, probably not, a whisper maybe?

Eirinn (author)jiovine2009-04-25

Nah i'd call myself schizophrenic then.

smtgr14 (author)Eirinn2009-04-20

Maybe he won't Answer because he Can't answer. You may want to try buying the long distance calling package for the phone before trying to talk to him.

Wally_Z (author)smtgr142011-06-16

Maybe "God" can't answer because "God" doesn't exist?

listentome (author)Jareadx2014-02-28

agreed man

xACIDITYx (author)Jareadx2009-04-20

Maybe you need desensitized. Go here.

BOOM5601 (author)xACIDITYx2010-09-06

Dont bring that up.

xACIDITYx (author)BOOM56012010-09-06

Oh no I forgot rules uno y dos.

Lithium Rain (author)xACIDITYx2009-04-21

Noooooooooooooooooooooooooooooooooo...they'll die...

jiovine (author)Jareadx2009-04-20

Well, you're entitled to your opinion, as is everyone else. I don't believe my device does anything you mentioned in your first sentence. But wouldn't that include churches, bibles and crosses as well? As to your second sentence, I'm always open to any good suggestions.

Jareadx (author)jiovine2009-04-21

It at least !!needs!! a different name, because we don't need a telephone to talk to God

BOOM5601 (author)Jareadx2010-09-06

It's a joke, just get over it.

mrsthursday (author)Jareadx2009-05-30

so your God doesn't have a sense of humour, mine does.

hammertong (author)Jareadx2009-05-26

God has a sense of humor. Platypus. Need I say more? Okay fine, God made man in his image; man has a sense of humor. I am christian, so no cracks about me making fun of God.

SirCheez (author)2013-07-09

Shut up everyone. It's a funny name, get over it and take your religious arguments somewhere else.

listentome (author)SirCheez2014-02-28

make me

fwjs28 (author)2009-05-12

if only i believed in God

fwjs28 (author)fwjs282009-05-12

and no, that is not an invitation to be bashed at about how such a bad peson i am and other such things....

mrsthursday (author)fwjs282009-05-30

I could never understand why people scorn, nice Biblical term, atheists and agnostics, they're just being honest after all. By the way I am a God-botherer. Awesome project by the way.

shabaki (author)mrsthursday2009-07-02

yea i mean isnt this countries govt. supposed to be "seperated" from religion and yet on all our money and our pledge theres god in it , or when u say u dont believe in god and its like uve just commited a crime.
P.S. <------athiest

fwjs28 (author)shabaki2009-07-03

see the thing about that is....well ya know...there really is no to make everybody happy just put gods instead of god..that way it would pertain to all religons, and athiests and agnostics wouldn' freak because there are other people who believe in gods so its not sinlgling one religon...

listentome (author)fwjs282014-02-28

no...change the name completely that wouldnt make me happy if it was gods and i dont like god iether and as said above "the freedom of religion " is now being called by tue government "freedom of worsi"

listentome (author)listentome2014-02-28

ip ...sorry accidently sent.....wich is entirely diferent freedom of religion is outspoken and being able to say what we beilieve....freedom of worship is"ohohoh y yaeh yyou guys can be christians but just be christians i your own little churches....."well tyats what the news media thinks and says....control the news media and you can make america think anything wich is wrong and you should just shutup about the rude remarks about me cause your just as outspoken as i am but only about different stuff completely different im a christian and why do hate god so muchh..........? and dont say you dont cause i know better

fwjs28 (author)fwjs282009-07-03

the power of the s :P

apender (author)shabaki2012-06-24

Constitutional right is to "FREEDOM of religion" not separation from it. Though by logic that would mean freedom from targetted harassment and mood ruining allegations of where one will go after death if he doesn't change his personal beliefs. IMO blanket propaganda that doesn't create the psychological disturbance of being singled out with intensity would be defended as it is just part of some religions to share. but no right to force or intimidate to convert (to a religion of the scared).

In summary, mention of God on money is not just religious it is also cultural. A trdition. Like that of christening (sp?) a ship. The economic managers following in the footsteps of founding fathers say thanks to a Person who represents everyone who couldn't be seen or considered to individually thank for our prosperity. Whether it waters God's name down by vanity or not is another deeper level of this topic. But people generally respect money and the 10 10 220 ads from the 90s surely make the case that the US dollar is still worth something! Lol and "Thank God!"

shabaki (author)shabaki2009-07-10

and by athiest i dont mean i believe in either a different god or multiple gods i mean i dont believe in any of them

fwjs28 (author)shabaki2009-07-10

i uhh, kinda figured..after all the meaning of atheist is pretty much not believing religion

10mmrookie (author)fwjs282009-09-24

Should it really matter some people who believe in God are worse people I say to each his own and strive to be a good person.

fwjs28 (author)10mmrookie2009-09-24

i think i deciphered you sentence to mean religion does not matter, as we are all equal people..and i agree

bloody0986 (author)2009-05-30

Anyone tried prank calling him yet? :P

w0ot! (author)bloody09862010-03-21


Fizzxwizz (author)2010-02-03

*Picks up phone and attempts to call God*

"Hello? Is this God?"

"No... this is Jesus."

"Oh sorry, wrong number." *Hangs up.*

Wait a second....

Colonel88 (author)2009-10-07

Lol i like the name the most i dont really understand the thing just skimmed through it. :D

ixisuprflyixi (author)2009-09-27

John, I really like the name telephone to god, don't change it. Also, I love your books. Keep up the good work.

jiovine (author)ixisuprflyixi2009-09-27

Thanks, I will be updating the article shortly to fix it up a bit.

shabaki (author)2009-07-02

*hem hem isnt fire more of a devil thing..........................even tho its simulated fire ...still essentially fire

vandal1138 (author)2009-07-01

Here's an idea. Everybody lighten up regardless of who you worship or don't or whatever. This gadget is nifty. Now shut up

klingoncowboy4 (author)2009-06-07

this even better than deiside *evil grin* why murder gos when you can call him at awkward hours

TheCureForSin (author)2009-04-20

I don't need 1000's of people reading this instructable and knowing how to call me! So sayeth the lord!

hammertong (author)TheCureForSin2009-05-26

But everyone is entitled to misinterpreting what God wants based on random colors attached to a very sciencey phone thingy... :D

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