how to make one detector long range with ne555 cip,episode -2

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for ne55 diagram write me in email ( [email protected] ) I will send ne555 detector diagram.
((detector long range frequence search,))
Metal Frequency
Gold.............. 5.000/ 5.200/ 5.500 khz
Silver.............. 8.700 /8.900 /9.000 khz
void............... 730 /800 khz
Water............ 10,150 khz
Copper.......... 11,700 khz
Bronce.......... 11,300 khz
Diamonds....... 12,400/12,600 khz
Iron................. 17,000 / 17,800 khz
Lead............... 4,500 khz
Mercury.......... 2,000 khz
Aluminium...... 7,000 khz
rusty- iron ....... 4.500 khz
free search..... 1.000 khz ,all metal

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