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reza vir
11-20-2015, 06:08 PM
Hello friends
Please comment on this device yourself say
Do you test someone made or videos
Regards and thanks
WM6
11-20-2015, 09:09 PM
Nice old CM design.
Nothing to do with remote sensing.
reza vir
11-21-2015, 06:15 PM
Do you like the new version?
WM6
11-23-2015, 10:53 AM
Not really. Earlier version is good enough.
Geo
11-24-2015, 08:10 AM
Another one design by Lary...
perzo
01-03-2016, 08:07 PM
Hello friends
Please comment on this device yourself say
Do you test someone made or videos
Regards and thanksI mead this md is very good a coin size dia 2cm in aire 20cm with coils 35cm


regards
fmnotes
01-03-2016, 11:26 PM
Its function is as BFO??
WM6
01-06-2016, 05:03 PM
No, it has one oscillator only and no mixer stage (BFO's should have two + mixer).
It is marked as TR, but has nothing to do with known TR/IB design.
Could be named as "floating Q" design.
fmnotes
01-06-2016, 11:32 PM
No, it has one oscillator only and no mixer stage (BFO's should have two + mixer).
It is marked as TR, but has nothing to do with known TR/IB design.
Could be named as "floating Q" design.

correctly....

Have you tried?
You believe that it works right?
WM6
01-07-2016, 02:02 AM
Yes I tried it. In fact I tried German version named Gold Prinz:

http://i64.tinypic.com/fc5nwh.jpg

Great kids detector.
fmnotes
01-07-2016, 10:55 AM
Yes I tried it. In fact I tried German version named Gold Prinz:

http://i64.tinypic.com/fc5nwh.jpg

Great kids detector.

Do you have more information about it?
Inductor materials etc.
WM6
01-07-2016, 11:20 AM
Coil frequency is not critical you can build it per data given in CM 1000 schematic.
fmnotes
01-07-2016, 12:13 PM
Coil frequency is not critical you can build it per data given in CM 1000 schematic.

Do you think that this German version is better?
WM6
01-07-2016, 12:43 PM
Not really. For me some parts was more available according German solution.

Main parts as front-end and divider are the same.
fmnotes
01-07-2016, 06:41 PM
Not really. For me some parts was more available according German solution.

Main parts as front-end and divider are the same.

Ok thank's
fmnotes
01-09-2016, 11:13 PM
BD522 You know some replacement?
WM6
01-12-2016, 03:40 AM
You can try with some other (audio) N-channel MOS FET like: BD512, IRFP240, IRF510, 2SK2221, IRF540, IRFP260, IRFP450, IRF840 ....
fmnotes
02-07-2016, 11:31 AM
You can try with some other (audio) N-channel MOS FET like: BD512, IRFP240, IRF510, 2SK2221, IRF540, IRFP260, IRFP450, IRF840 ....

Thank you my friend.