Pulse IB discriminator (by Sasho - Varna)

[smity]

It is possible to use uA741CN?

[smity]

lm566 Has not found. Than it is possible to substitute? What complete name OP2 741? Thanks for answers.

[mesy64]

how mach depth detect pulse ib for a coin in ground and large target??

[WM6]

Interesting solution. Congratulation to sasho Varna. I am afraid of multiple coil solution and still waiting for one coil solution of this schematic.

[Aiko]

Guys ... is there some test reults?

[Aiko]

Hi guys!

If someone has tested that device on the field, would share some test results – depth, discrimination and stability? Is this real pulse induction detector with discrimination, or only the name is IB Pulse?

… Ivconic, I will be grateful for your opinion also.

Regards!

[gwzd]

Da, da.... we know somewhat about it

It is an English speakers' forum after all. Nothing to get upset about.
Vi kan alla börja prata på olika språk om du vill, men det skulle aldrig funka, eller hur?

Translation from Swedish for non Swedish speakers:
We can all start talking in different languages if you want, but that would never work, or?

Chill out man, I didn't intend to offend you, just to give others the opportunity to profit from the post.
Regards

[gwzd]

Возможно если у полевого транзистора имеется малое напряжения запирания.Нужна другая схема управления затвора
транзистора u/2=открит и -u закрит.

For the non Russian speakers:

"That's possible if the JFET transistor has a low pinch off voltage. You'll need another control circuit, use u/2 = to open and -u to close"

This is interesting because the word "открит" actually means "open" but assuming this is a n-channel then it should be "closed" or conducting while the word "закрит" means "closed" but it should be open or not conducting. I think you got the point.

Regards

[dantech]

Da, da.... we know somewhat about it

[gwzd]

Сашо, можно ли вместо CD4066 использовать полевой транзистор

For the non Russian speakers,
"Sacho, can I use JFET transistor instead of the CD4066?"

It's useful to know a few languages after all
Regards

Возможно если у полевого транзистора имеется малое напряжения запирания.Нужна другая схема управления затвора
транзистора u/2=открит и -u закрит.

Сашо, можно ли вместо CD4066 использовать полевой транзистор

[karlos x]

pcb

in schematick....

[karlos x]

pcb

p=25 k threshold

[karlos x]

pcb

Modified for last schematick,audio mod with LM 566...