Andy Flind MFD.

[Geo]

Hi.
All these years i received so many mails to post the schematic of Andy Flind.
Today i decided to post it here.
Article is in PDF format and it is from EPE magazine.
I would like Admin to tell me if i can do it or No. Article is from year 1995.

Regards

[abdou2014]

We waited for this moment for a long time, thank you Geo

[WM6]

Geo, first post, then ask.

Admins post a lot of old magazine projects here:
http://www.geotech1.com/cgi-bin/page...e=projects.dat
so one more (22-year old project) could not change nothing.

In contrary, admins can delete post (after most of member downloads of course).

[zakari]

HI GEO
That Is GOOD Idea
We Are Waiting

Thanks So Much

[Geo]

Originally Posted by WM6

Geo, first post, then ask.

Admins post a lot of old magazine projects here:
http://www.geotech1.com/cgi-bin/page...e=projects.dat
so one more (22-year old project) could not change nothing.

In contrary, admins can delete post (after most of member downloads of course).

Hahaha.... no good idea.
I want the members to read the article and these that would like to construct it with modifications. Maybe i am not sure about results.... but they will construct a lrl the same with a commercial one (and very expensive).
So i need the permission of Admins.
I am waiting for Qiaozhi......

Regards

[Geo]

Pray to the Saint George (Qiaozhi)....

[abdou2014]

Qiaozhi is very generous, he posted the full totem schematic

[Qiaozhi]

Originally Posted by Geo

Hahaha.... no good idea.
I want the members to read the article and these that would like to construct it with modifications. Maybe i am not sure about results.... but they will construct a lrl the same with a commercial one (and very expensive).
So i need the permission of Admins.
I am waiting for Qiaozhi......

Regards

Carl says that Winborne Publishing gave him permission years ago for older articles, probably including this one. So please go ahead and post it.

[Geo]

Thank you Qiaozhi.
Now the remaining problem is the size of the file.
So i will post the file to your email so you to post it here. Do you have the same email as before some years??

[Sneshko]

Originally Posted by Geo

Hi.
All these years i received so many mails to post the schematic of Andy Flind.
Today i decided to post it here.
Article is in PDF format and it is from EPE magazine.
I would like Admin to tell me if i can do it or No. Article is from year 1995.

Regards

Thank you very much dear Geo & Qiaozhi!
...And, Happy birthday Geo!!!
Regards in Serbia!
Sneshko

[indiana jones]

Originally Posted by Geo

Hi.
All these years i received so many mails to post the schematic of Andy Flind.
Today i decided to post it here.
Article is in PDF format and it is from EPE magazine.
I would like Admin to tell me if i can do it or No. Article is from year 1995.

Regards

Thanks Geo

for me, one of the best lrl

[Geo]

Hi Chris, how are you.
Try this project, maybe to have good results at your are.

[Guard]

Originally Posted by Geo

Hi.
All these years i received so many mails to post the schematic of Andy Flind.
Today i decided to post it here.
Article is in PDF format and it is from EPE magazine.
I would like Admin to tell me if i can do it or No. Article is from year 1995.

Regards

Thanks Geo

I somehow finish the MFD.
Ferrite 6khz, 1nf, no preamp, more gain to ic1b, a 1$ chinese clock from +10cm and from sides from 25cm.
Nice mfd, need mods
Inside lab, it beeps in any spark, and from 7m. to the Northest walls (metal bars).
Away from 50Hz to mountains, has no compass "thinks" and no bips !
I like the gold-bell-sound

Regards
George

[Dubulumach]

1st mod of MFD


Ive forgot to put 470pF in negative feedback in parallel with 1Meg biasing resistor.

Best Regards
Dubulumach

[Dubulumach]

2nd mod.