silver sabre

[Rudi]

I would build the silver sabre.On 4 april this year BG post the circuit on this forum.Marcello post a circuit on 18 august of the silver sabre.Which one is the right one. Can i replace the LM2930 to 7805? Has anyone a pcb? Which coil? I found in a dutch book of metaldetectors : tx 100 turn of 0.5mm copperwire and a diameter of 200 mm and rx 170 turns of 0.5mm copperwire, diameter 80mm

[Massimo]

Re: silver sabre

Hi Rudi
You can replace lm2930 with a 78L05 or a 7805, better low drop version.
The info on coil you find in the book are incorrect.
Try A DD coil 20 cm diameter and 130-135 turns of .25-.35 mm.

[Carlos]

Re: silver sabre

Any have the PCB of this circuit?

[Marcello]

Re: silver sabre

The Eldorado is better of silver sabre!