Based on electromagnetic-field radiation

Place it under the pillow - Built-in timer

Circuit diagram:



R1,R5___________1K   1/4W Resistors
R2_____________10K   1/4W Resistor
R3,R6__________10M   1/4W Resistors
R4,R7___________2M2  1/4W Resistors
R8,R9___________4K7  1/4W Resistors

C1,C7__________47µF   25V Electrolytic Capacitors
C2____________100nF   63V Polyester Capacitor
C3,C4_________330nF   63V Polyester Capacitors
C5,C6__________15nF   63V Polyester Capacitors

D1,D3,D4,D5__1N4148   75V 150mA Diodes
D2______________LED   (any type) (see Notes)

IC1____________4060  14 stage ripple counter and oscillator IC
IC2____________4093  Quad 2 input Schmitt NAND Gate IC

Q1____________BC327   45V 800mA PNP Transistor

L1____________Radiator coil (see Notes)

P1____________SPST  Pushbutton

SW1___________2 poles 4 ways rotary switch
SW2___________SPST  Slider Switch

B1____________9V PP3 Battery

Clip for PP3 Battery


Device purpose:

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).


Circuit operation:

IC2C and IC2D generate two square waves at about 1.2 and 5 Hz respectively. These wave-forms are converted into 60µS pulses at the same frequencies by means of C5 & C6 and mixed at Q1 Base. This transistor drives the Radiator coil with a scalar series of pulses of 60µS length and 9V amplitude.
IC1, IC2A & IC2B form the timer section. C1 & R2 provide auto-reset of IC1 at switch-on. The internal oscillator of IC1 drives the 14 stage ripple counter and, after about 15 minutes, output pin 1 goes high. Pin 3 of IC2A goes low and stops IC2C & IC2D oscillation.
If SW2 is left open (Alternate mode operation), after 15 minutes pin 1 of IC1 goes low, pin 3 of IC2A goes high and oscillators are enabled again.
If SW2 is closed (Stop mode operation), the first time output pin 1 of IC1 goes high, the internal oscillator of the IC is disabled by means of D1. Therefore the circuit remains off until a reset pulse is applied to pin 12 by means of P1 or when the whole device is switched-off and then restarted.
The same thing occurs when SW1 is switched on 30 or 60 minutes positions, obviously changing time length.
IC2B drives pilot LED D2 which operates in the following three modes:

  1. flashes quickly and almost randomly when the Radiator coil is driven
  2. flashes somewhat slowly and regularly when the Radiator coil is pausing during the Alternate mode operation
  3. is off when the circuit auto-stops (Stop mode operation)


Disclaimer: we can't claim or prove any therapeutic effectiveness for this device.