GOLDSCAN IV 4835 problem

[didarpm]

IC 78L05 / IC 7905

The IC 78L05 NEED THE NEGATIVE BATTERY ARE REGULATED 5V, GND IN THE SCHEME IS CONNECTED TO THE POSITIVE BATTERY

[Alexismex]

Didarp,
The schematic is OK 100%
you must habituate that the ground system of the Gs4 is positive before starting to construct this PI

[Jose]

Hello to All
I am finishing building the GS4 and works quite well.
I have a drawback in "All Metal", by passing through a metal object, the sound is like a drag, and sometimes choppy.
Anyone know what could be the problem.
Thanks, Jose

[VUJO]

Dear friends, I need a diagram of Goldscan-4 in Proteus thanks.
My e-mail [email protected]