Delta Pulse

[berreizeta]

R1 = 220 Ohm
R2 = 1646 Ohm
V = 10.60v


KT315 has a good idea with 7909 (search post).

[raff33]

Hi ,
please can any one guide me how to connect leads LM337 (adjustable negative regulator) for exact 10.6volts to get more stability ?
many thanks

[raff33]

???????????????????

[berreizeta]

FINALLY REPAIRED !!! or maybe....

http://www.youtube.com/watch?v=j6uul9BHu_o

Except: Sound "disappears" when the Threshold is at or near maximum (only speaker, LCD still working right)

(NE555 pin 2 with signal/detection Thresh. at middle = 2.01v, But with Thresh. at max. = 6.84v !! what happens ....??)

Regards
Ger.

[berreizeta]

Hi all,

A expert glimpse, please:

http://www.youtube.com/watch?v=-RYyT20ZLV0

Thanks.

[Jose]

thanks Berreizeta
Here the link

http://www.geotech1.com/forums/showthread.php?t=16508

[berreizeta]

Sorry José, Dom44 located! yes is the same circuit.

LCD Teknoloji Ekibi "with discrimination" ::

[berreizeta]

Hola José,

No encuentro ese Foro, si puedes ponme el link.

Este LCD es el mismo de teknolojibiEkibi (sin discriminación!) y ligeramente modificado para mayor facilidad de montaje.

*

I can not find this forum: Dom44, if you want to put me the link here.

This LCD is the same teknolojibiEkibi (without discrimination!) and slightly modified for easy of assembly.

[Jose]

Hello Berreizeta
He asked if the LCD seen in the photo, is the version published dom44 forum. Or if other version, you are using?.
thanks
Jose

[berreizeta]

Hola José,

Lo he terminado hace un par de dias, a que te refieres con el forum ??

(Google-trans):
I've done a couple of days, do you mean with the forum?

Saludos
Ger.

[Jose]

Good work Berreizeta
The LCD is posted on the forum Dom44?
thanks
Jose

[berreizeta]

Zener solved.... Maria Callas still singing....

[berreizeta]

Hi KT315,

My DP worked the same as yours: perfectly, with a low and deep sound, but now he has gone crazy.... looks like Maria Callas !

-> 8V2 zener, what voltage should be , in mine = 0V ¿?

Ger.

[kt315]

Hi to all,


A Problem:

- With threshold pot, all left = 0..1 -> No sound - but Detection 100% (LCD)

- With threshold in 2..4..10 = I have sound and detection = 50%... or less....

I changed BC557, NE555 and nothing at all ....., a good idea?


Regards.
Ger.

in DP THRESH works strange way... you have not be wondered it. always set/leave THRESH in middle position, or slightly left-right. only in the position S.A.T. (or autotracking) works optimally and properly. if you will be hunting and DP will work OK you can note that THRESH is not so effective as at hunting begin. it is normal, do not wonder. that is the normal SAT autotuning.

http://www.youtube.com/watch?v=3yZuOn4bc6o

[berreizeta]

PROBLEM WITH THRESHOLD AND SOUND

Hi to all,


A Problem:

- With threshold pot, all left = 0..1 -> No sound - but Detection 100% (LCD)

- With threshold in 2..4..10 = I have sound and detection = 50%... or less....

I changed BC557, NE555 and nothing at all ....., a good idea?


Regards.
Ger.