2 boxxxx :)

[Esteban]

The link provided by you connect to this:

http://sevzirfo.narod.ru/md.htm

Wait, is slow. Look TR locator. This is the page:

[nelson]

TR Locator

Esteban y Geo, muchas gracias por la información.
Ahora si puedo entrar al web del TR Locator.
Además he copiado otros circuitos del detector Skif-PI. que intentare armar una vez termine el TR locator y earth resistivity logger de EPE.
Atte.
Nelson

Esteban and Geo, many thanks for your information.
Now i can acces to the TR Locator web site.
Also i had copy other circuits of Skif-PI, that i ll try to made after i finish the TR locator and an earth resistivity logger from EPE.
Best regards.
Nelson

The link provided by you connect to this:

http://sevzirfo.narod.ru/md.htm

Wait, is slow. Look TR locator. This is the page:

[kt315]

Hello all:

There is nothing (blank) in the page:

http://sevzirfo.narod.ru/

Have you the same problem?

Thank you

Frank

hi Frank. it is because the site home webpage has not DEFAULT.HTML or INDEX.HTML name. you are aware probably, that some people are great specialists in one area, but sometimes does not know elementary school things
try http://sevzirfo.narod.ru/md.htm
and you will get what you need of.

[nelson]

TR locator

Hi KT315.
Today a got almost everything to make the TR locator.
But still having some problems on getting components.
I can´t get C13 and C14, so i will try with 470uF instead of 500uF (is this ok?).
For R27 (200 ohms), can i use 500 or 1000 ohms?
The meter wasn´t here by now. Is posible to run the detector without it?
I can´t get C3 (0.4uF), can i use another value, wich one?
Sorry for all my questions, but i m not very good on electronics, so i need your help and all support of the friends here on the post.
Finally i m sending more pictures of what i have already done.
Regards
Nelson

hi Nelson. you can set up what you have. 2,2-10 uF and 2200-4700pF will be ok and must work. yours.

[nelson]

TR locator crystal Y1

Almost finishing the TR locator and i need to know if the crystal (Y1) can be 32.768 instead of 32 Khz.
regards
Nelson

Hi KT315.
Today a got almost everything to make the TR locator.
But still having some problems on getting components.
I can´t get C13 and C14, so i will try with 470uF instead of 500uF (is this ok?).
For R27 (200 ohms), can i use 500 or 1000 ohms?
The meter wasn´t here by now. Is posible to run the detector without it?
I can´t get C3 (0.4uF), can i use another value, wich one?
Sorry for all my questions, but i m not very good on electronics, so i need your help and all support of the friends here on the post.
Finally i m sending more pictures of what i have already done.
Regards
Nelson

[Geo]

Hi Nelson

I can´t get C13 and C14, so i will try with 470uF instead of 500uF (is this ok?).
Yes

For R27 (200 ohms), can i use 500 or 1000 ohms?
Yes, simple the adjust will not be so easy
The meter wasn´t here by now. Is posible to run the detector without it?
Yes

I can´t get C3 (0.4uF), can i use another value, wich one?
0.47uF or two 1uF in series

Sorry for all my questions, but i m not very good on electronics, so i need your help and all support of the friends here on the post.
Finally i m sending more pictures of what i have already done.
Regards
Nelson

Wishes

[nelson]

TR locator

Hi Geo and thanks for the information.
About KT815 (2) ant KT816, i m using TIP31, in TO220 case, is this Ok?. What about the placement on the board?Shuld i place them has is show phisically en sprint layout format?
What about the crystal, i have 32.768 instead of 32 Khz?
Thanks
regards
Nelson

Hi Nelson
Originally Posted by nelson
I can´t get C13 and C14, so i will try with 470uF instead of 500uF (is this ok?).
Yes

For R27 (200 ohms), can i use 500 or 1000 ohms?
Yes, simple the adjust will not be so easy
The meter wasn´t here by now. Is posible to run the detector without it?
Yes

I can´t get C3 (0.4uF), can i use another value, wich one?
0.47uF or two 1uF in series

Sorry for all my questions, but i m not very good on electronics, so i need your help and all support of the friends here on the post.
Finally i m sending more pictures of what i have already done.
Regards
Nelson


Wishes

[Geo]

Hi Nelson. Yes you can use 32,768 Khz crystal instead of 32 Khz. About KT815 and KT816 i can't tell you this time. looking for at google and you will find what you ask.

[kt315]

hi nelson. you are right. if anyone mentions 32 kHz quartz anywhere it is really only 32768 Hz (but you can get 33 kHz from the crystal, for example, but this fact must not be a surprise for you! set it!). the crystal for a digital clock we call it. any one in TO-220 will be OK. what you can find up for sound amplifier in your local shop you can use them w/out limits. KT814-15-16-17-18-КТ819 are widely spreaded ordinary transistors. but remember they all are complementary pairs. КТ814 & КТ815, or KT816 & KT817 etc.

[nelson]

TR Locator

Ok Geo and KT315.
Here i m sending pictures of my work, but still having dubs with Q3, Q4, Q5, Q6 and Q7, i had replaced all of them with TIP31C. My small knolegments of electronics, teel me that for example Q4 and Q6 are different, KT815 looks like a NPN transistor and KT816 Q6 and Q7, looks like PNP transistors. Now on an old post you said we can use any transistor from TIP30 to TIP51, i m using TIP30C, so can you tell me what are de differences. Please take a look to mi PCB on the picture, all TIP30C transistor are placed like is show on sprint layout PCB, the one i had made.
Sorry for posting to many dubs, but has i said i have littel knwlegment of electronics.
Regards
Nelson

hi nelson. you are right. if anyone mentions 32 kHz quartz anywhere it is really only 32768 Hz (but you can get 33 kHz from the crystal, for example, but this fact must not be a surprise for you! set it!). the crystal for a digital clock we call it. any one in TO-220 will be OK. what you can find up for sound amplifier in your local shop you can use them w/out limits. KT814-15-16-17-18-КТ819 are widely spreaded ordinary transistors. but remember they all are complementary pairs. КТ814 & КТ815, or KT816 & KT817 etc.

[nelson]

TR locator part replacement

Ok, now i think i found were my errers are.
Q4 and Q5 are NPN and can replaced by TIP31, 33, 35, 41, 47, 48, 49, 50 or 51.
Q6, Q7 and Q3 are PNP, and can be replaced by TIP30, 32, 34, 36 and 42.

Here i m sending to KT315 Sprint layout file, with some adds showing to those like me that are not very good in electronics, more details about those transistors and i marked the legs of each one (Emmiter, Colector and Base).
KT315, would you please take a look to this file make any coments about my adds.
Regards
Nelson

Ok Geo and KT315.
Here i m sending pictures of my work, but still having dubs with Q3, Q4, Q5, Q6 and Q7, i had replaced all of them with TIP31C. My small knolegments of electronics, teel me that for example Q4 and Q6 are different, KT815 looks like a NPN transistor and KT816 Q6 and Q7, looks like PNP transistors. Now on an old post you said we can use any transistor from TIP30 to TIP51, i m using TIP30C, so can you tell me what are de differences. Please take a look to mi PCB on the picture, all TIP30C transistor are placed like is show on sprint layout PCB, the one i had made.
Sorry for posting to many dubs, but has i said i have littel knwlegment of electronics.
Regards
Nelson

[nelson]

TR Locator with parts replacements

Ok, here is the file that i mention before.
This is a Sprint layout file and a gif file
Regards
Nelson

Ok, now i think i found were my errers are.
Q4 and Q5 are NPN and can replaced by TIP31, 33, 35, 41, 47, 48, 49, 50 or 51.
Q6, Q7 and Q3 are PNP, and can be replaced by TIP30, 32, 34, 36 and 42.

Here i m sending to KT315 Sprint layout file, with some adds showing to those like me that are not very good in electronics, more details about those transistors and i marked the legs of each one (Emmiter, Colector and Base).
KT315, would you please take a look to this file make any coments about my adds.
Regards
Nelson

[nelson]

TR locator

Please i want to know if the coorections made are ok?
Regards
Nelson

Ok, here is the file that i mention before.
This is a Sprint layout file and a gif file
Regards
Nelson

[kt315]

revised schematic (for geotech).

[Chris2]

Hi KT315,

Short question.... What is the purpose of the polarity switch? Why is it useful for operating the TR-Locator?

Chris