Placa de circuito impreso PCB PARÁSITO Zapper Dr Hulda Clark 31 kHz lista hágalo usted mismo

31kHz Frequency Zapper. # frequency output 31kHz +-1-2%. This ZAPPER is very easy to use. PCB ( printed circuit board ) 15mm x 25mm 31 kHz FREQUENCY ZAPPER. To complete the zapper you need (. - a small (transparent to see the diode) plastic box to place the PCB in, or just transparent heat shrink tube to cover the PCB. ).

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