Made in Russia. Date 17.06.2013.
Red - Coil L1. Green - Coil L2.
L1 : L2 = Red /1 : 3/ Green.
Example L1 = 8 w. L2 = 24w - both coils same wire diameter.
Black - Balanced Output Coils - must have same inductance meassured at transformer core. In central transformer's limb must be NdFeB strong magnet with same width and lenght as central limb. height of magnet several mm.Look at aliexpress.com
Обозначение
T1 КТ819А or КТ805
C1 bipolar 0.1 uF
C2 elco 50uF/25V
R1 2.2 кОм
R2 62 Ом
Bat1 12V
Tr1- Ferrite transformer. Make it from two E ferrite cores.Magnetic permeability > 2000. Could be higher Miu. Central limb slot make carefully with fine grinding with respect to magnet dimensions. Good choice of ferrites at aliexpress.com
Wire 1.5mm diameter.
pcb
http://cxem.net/tesla/files/tesla36_pechatnaya-plata(1).lay
Source
http://cxem.net/tesla/tesla36.php