If it is in self-oscillation then also removing the quartz we have a DC output. With respect to thresold potentiometer I don't understand what you mean, by varying the cursor you find a point where the led is on, variant on the contrary the led goes off.
Announcement
Collapse
No announcement yet.
Lrl from Italy
Collapse
X
-
I did not understand self oscillation, my LRL is very sensitive , in the house it detect TV 3 meter, the telephone and internet cables 1 meter, outside the house when i raise my hand the LED lights, I lower my hand the LED off , is that self oscillation ?
Comment
-
-
-
Mr Franco ,has he done our friend Mustapha a mistake in putting R5 C7 C8 in this location or it does not matter ?Originally posted by FrancoItaly View PostNo, just a single power supply, but each stage must be decoupled as shown in the wiring diagram. C5, C6, R4 for the oscillator stage and C7, C8, R5 to the amplifier stage.
Comment
-
Originally posted by zakari View PostHI dear franco and abdo
mustefa"s pcb is mistake in pin4 of the lm358 and decoupling capacitors of display stage and...
Originally posted by pigeon View Posthi all
I made the dream man version for the second time but it does not function.
help me pelase
mr. franco what i mast do now? plese help me !
Comment
-
?
Hi mr franco
I am perfect pi detector man but i to intend mak your lrl
I think this device is good.
I have some questions?
1: in some device used 2 or 3 antenna master antenna connected to pcb to L1
But to where connected other antenna on the pcb please insert schematic for use 2 or 3 antena
2: in some device use plastic tube and make bobin with copper wire how make this bobbin
3: som people changed L1 and c10 or changed others parts but results bad to state.
What your sight? And what good change parts is better?
I need your email for send my pi detector and i have questions of you
Best regards
Comment

Comment