Article
Tune in to Electrosmog
Listen to EMF soundscapes
The debate concerning the possible harmful effects of electrical and magnetic alternating fields in our environment goes on. The only thing that everyone seems to agree on is that you cannot see or smell these fields. No longer true! Build this simple electrosmog detector and add two extra senses to the five that you already have.
Materials
Gerber file
CAM/CAD data for the PCB referred to in this article is available as a Gerber file. Elektor GREEN and GOLD members can exclusively download these files for free as part of their membership. Gerber files allow a PCB to be produced on an appropriate device available locally, or through an online PCB manufacturing service.
Elektor recommends the Elektor PCB Service service from its business partner Eurocircuits or AISLER as the best services for its own prototypes and volume production.
The use of our Gerber files is provided under a modified Creative Commons license. Creative Commons offers authors, scientists, educators and other creatives the freedom to handle their copyright in a more free way without losing their ownership.
PCB
Component list
Resistors:
R1,R3 = 10k
R2,R4 = 100k
R5 = 1k
Capacitors:
C1,C3,C4 = 10µF 16V radial
C2 = 220µF 16V radial
Semiconductors:
T1,T2,T3 = BC547B (for T1 also BC549C, see text)
Miscellaneous:
S1 = on/off switch, 1 contact
Bt1 = AA battery (preferably alkali-manganese) with holder
K1 = 3.5-mm jack socket, stereo (see text)
K2 = 3-way PCB terminal block, 5mm lead pitch
PCB, ref. 040424-1 from the PCBShop
L1 = pickup coil, if necessary with ferrite core (see text)
ANT = length of wire (see text)
R1,R3 = 10k
R2,R4 = 100k
R5 = 1k
Capacitors:
C1,C3,C4 = 10µF 16V radial
C2 = 220µF 16V radial
Semiconductors:
T1,T2,T3 = BC547B (for T1 also BC549C, see text)
Miscellaneous:
S1 = on/off switch, 1 contact
Bt1 = AA battery (preferably alkali-manganese) with holder
K1 = 3.5-mm jack socket, stereo (see text)
K2 = 3-way PCB terminal block, 5mm lead pitch
PCB, ref. 040424-1 from the PCBShop
L1 = pickup coil, if necessary with ferrite core (see text)
ANT = length of wire (see text)
Discussion (0 comments)