White's 3900 schematic again

[ivconic]

Hi, can anybody justify this schematic? Is this complete and true or fake?
Anybody has .pcb for it? It looks rather easy to build, so if it is not fake it could be interesting to check it.
regards

[ivconic]

PCB


I can not beleive that nobody interested in this!? Anybody traced pcb for this detector!?
If it is not fake than it could be very nice and easy to make it....
Come on!

[Geo]

I can not beleive that nobody interested in this!? Anybody traced pcb for this detector!?
If it is not fake than it could be very nice and easy to make it....
Come on!

Who Knows???:confused: :confused:
I have the schematic too but i am not sure about its authentic.

[kt315]

ivconic,

what is a shpere of your love... )))
there are people did repeat successfully TM-808. in 2003 years. in SMT. this 3900 is good for its time but do you agree that it is obsolete :confused:
yours.

[ivconic]

Everything works!


Everything that works nice! I am looking some usefull but simple. It should be obsolete if so...I am asking just is this schematic fake or not? If there is any .pcb for it? Look nice to me.I would like to skip mP's,PIC's,AVR's and simillar....If you have .pcb and any hint on this - welcome!
regards

[ivconic]

More precisely...


To be more precisely, i am looking on some good no-motion detector project, without any mP's, just with conventional components.This 3900 schematic suits me just fine,if is not a fake....
That's all....
KT315 if you have something,you can post it here...
thank's in advance
regards

[robert]

You'll get it soon ...!?


Always the same....You just asking, with no apply's! Ha,ha,ha. When giving,
everybody's here, when asking - nobody here!
You'll get it soon......like in 2 years maybe....ha,ha,ha
keep in touch

[Carl-NC]

I don't have a 3900 to look at. No one else seems to know. It looks to be a reasonable circuit, so give it a try.

[ivconic]

Thank's...


Thank's Carl!
First time i saw it, it started to "itch" me...Simple,nice and easy...
I'll try it anyway,later post some results...
regards

[voran]

Hi, can anybody justify this schematic? Is this complete and true or fake?
Anybody has .pcb for it? It looks rather easy to build, so if it is not fake it could be interesting to check it.
regards

Yes. Is true.
The outline is copied from my 3900.
The PCB is critical.
Bye.

[kt315]

https://www.geotech1.com/thuntings/s...ighlight=voran

no problem. ivconic CAN use SEARCH engine here and CONTINUE the subject, w/out a begin of new one.

[ivconic]

?


Thanks Voran!

:confused:
KT315 i do not understand you!?

[robert]

Nothing to understand...


There is nothing to understand....Puting some nice pics from Protel or Sprint Layout wouldn't help much to anybody....Superb russian projects ....Bha,ha,ha!

[kt315]

Robert, you are not right here. sorry. Jelko (jackdetect) HAD released A COPY on metaldetectors. in his country, what you still remember was SERBIA. he GAVE us these files on CZ-6. I do not want again spread them here. if you need you can search this forum and e-mail to Jelko.

[ivconic]

Enough...


Enough you said to advertise these ! Ha...
Anyway, I started this thread to find some help from others,since this
3900 schematic is looking nice, no matter if it is "obsolete". I do not have
.pcb for it, and i am not sure that schematic is right.But i'll beleive to Voran.Voran many thanks for this! I wanted to open another thread, i do not
need to "search"....Some threads step by step faded out,so it was good idea
to "refresh" some nice projects, all over again....If you can help, welcome, if
not or do not want to, then o.k. No money you 'll gain here anyway!
regards