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help in this scheme
http://mail.sapo.pt/webmail/imp/view.php?actionID=view_attach&id=2&uid=8723&mailbo x = uniq = 1347269193734 & SU5CT1g
list of components: A) resistance: 1 M ohm
B) R-47 Khom
C) R-1.5 Khom
D) DIODE ZENER 8VOLT.
F) 2N 3906 transistor 06-A
Good morning friends. As I could not, by design, here, direct, got the link, the same.
so it is: the detector, where I copied this scheme (already sold on the:1 - 09-2012.) the led, began to blink, to: 10.8 volts. this mine detector, as mentioned with batyeria exactly the same, the other will, flashes, to: 12.2 volts. now, this is not good! flashing had more or less the same volts. and then to 11 volt.
I thought .... will the led, this mine detector, which before being changed by the manufacturer, working at 14.4 volts, and up to the zener diode mark on the board: 11 volt. (of course this circuit, LED flash, was removed, by the manufacturer, only the left LED on the panel) but if the LED blinking for different voltage or different value from the other model that I sold ...... is for this reason that this LED blinks to, 12.2 volt?? if so, what is the value of led, flashing, for now?
Another thing, I think, if not, the value of the led, the problem ... perhaps the integrated ..?!
I applied this, is: (ST 2N 3906 SD C) which was copied in another model that was 2N 3906 A 06) WILL HAVE EXACTLY THE SAME EQUIVALENCE? (PS) sorry, my design, I have no way to drawings! Must give notice to, ok!?)
THANK YOU.
CARLOS
(PORTUGAL)
list of components: A) resistance: 1 M ohm
B) R-47 Khom
C) R-1.5 Khom
D) DIODE ZENER 8VOLT.
F) 2N 3906 transistor 06-A
Good morning friends. As I could not, by design, here, direct, got the link, the same.
so it is: the detector, where I copied this scheme (already sold on the:1 - 09-2012.) the led, began to blink, to: 10.8 volts. this mine detector, as mentioned with batyeria exactly the same, the other will, flashes, to: 12.2 volts. now, this is not good! flashing had more or less the same volts. and then to 11 volt.
I thought .... will the led, this mine detector, which before being changed by the manufacturer, working at 14.4 volts, and up to the zener diode mark on the board: 11 volt. (of course this circuit, LED flash, was removed, by the manufacturer, only the left LED on the panel) but if the LED blinking for different voltage or different value from the other model that I sold ...... is for this reason that this LED blinks to, 12.2 volt?? if so, what is the value of led, flashing, for now?
Another thing, I think, if not, the value of the led, the problem ... perhaps the integrated ..?!
I applied this, is: (ST 2N 3906 SD C) which was copied in another model that was 2N 3906 A 06) WILL HAVE EXACTLY THE SAME EQUIVALENCE? (PS) sorry, my design, I have no way to drawings! Must give notice to, ok!?)
THANK YOU.
CARLOS
(PORTUGAL)
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