RELIC HAWK

[Fred]

Last version with merged mods from Max.
I used i slightly diferent path.
From now on i will only mod the last posted layout,so we dont have 2 diferent versions.Also a list of mods made would be usefull each time.
Here beside small details, i used a jumper to "B" connection and changed value of resistor from U12/12 to 27K instead of 22k .
regards,
Fred.

[nelson]

Hi my friend.
Could you please send me a copy to [email protected] or to [email protected]

In advance many thanks

Nelson

Nakky , Sprint 5.0 open's Relic Hawk perfect. If you need a copy of sprint 5.0 , I can e-mail to you...................Take care................Eugene

[Fred]

Hi Fred,
not big mistakes just that at U12 and trimpots you made no connections to -2.5 and +2.5 or pads but I've used your layout, my idea is always we all use same pcb at the end... so why don't use last version and just mod it more ?

I've made that changes but would be really good if you will check pcb layout and spot if I missed something along the way...

Kind regards,
Max

Ok yes Max,
yesterday night i made a lot of small corrections , nothing important but rounded corners etc. ,i will post it here soon with your mods.
thanks,
see you,
Fred.

[Max]

Hi Max,
thanks,
I have been improving my version too,most are small details, did you make big changes or found importnant mistakes so i can correct them too ?
So we don´t end with two very differents PCB

regards,
Fred.

Hi Fred,
not big mistakes just that at U12 and trimpots you made no connections to -2.5 and +2.5 or pads but I've used your layout, my idea is always we all use same pcb at the end... so why don't use last version and just mod it more ?

I've made that changes but would be really good if you will check pcb layout and spot if I missed something along the way...

Kind regards,
Max

[Fred]

Hi,
I've made some mods... added -2.5 and +2.5 rails + connections.

Changed some pads to bigger ones and checked a bit...

I think there could be some other mistake... so better check well first.

Kind regards,
Max

Hi Max,
thanks,
I have been improving my version too,most are small details, did you make big changes or found importnant mistakes so i can correct them too ?
So we don´t end with two very differents PCB

regards,
Fred.

[Max]

Hi,
I've made some mods... added -2.5 and +2.5 rails + connections.

Changed some pads to bigger ones and checked a bit...

I think there could be some other mistake... so better check well first.

Kind regards,
Max

[amtech2005]

RELIC HAWK

I Put the parts list in a note-pad . So its easy to move around, also easy to correct...........Eugene

[Fred]

Yes Nakky, i have used Sprint 5.0.
A shame they are not compatible.
Regards,
Fred

[amtech2005]

RELIC HAWK

Nakky , Sprint 5.0 open's Relic Hawk perfect. If you need a copy of sprint 5.0 , I can e-mail to you...................Take care................Eugene

[nakky]

Hi Fred Sprint layout 4.0 will not open it.Grt Nakky

[Fred]

Hi,
It make sense to mee too that if it is marked "102" , (1000), that it will be 1mH...but as Max said can not be taken for sure.
I send here the completed (but still probably contain errors)PCB , with upper side layout.
It is was more dificult than expected to do, so it would be good if someone could carefully check it.To do so i send also the Sprint layout file,otherwise it is almost impossible.
My head is spinning already and i must make a pause.
I made only a very quick verification, so it may be missing some connections.
Unfortunetely, the +/- 2v5 connections to the pots still must be hard wired.I could have done differently but it would be more confusing , in particular for those who want to make it single layer.
Maybe that can be improved later.
Any suggestion is welcome.Critics too!

Best regards,
Fred.

[Max]

I would consider studying the possibility that it is 1 uh. Other ML detectors use 1 uh in series with the RX coil path (i.e. SD2000). I know the SD2000 is a completely different type detector, but ....


Regards,
J. L. King

Hi,
well I'm not absolutely sure it's 1mH... but usually I read 102 as 1mH. It could also be 1uH inductor there... depending on units used for indication... e.g. if inductor is a small value one value could be also expressed in nanohenries really... though a bit rare option.

I now the great part of inductors are all similar about that and value is expressed in uH.

PS: I still think it's 1mH... but let's see other schematics too...

Kind regards,
Max

[KingJL]

Hi,
yes it is: 102u = 10 * 10^2 uH = 1000uH = 1mH

At least I read it as this...

(actually the u is a "K" but change nothing...)

PS: in the bulgarian schematic I see 1uH there... but probably is a mistake cause if it's 102k the only way it could be 1uH is if unit used are nanoHenries...

I would consider studying the possibility that it is 1 uh. Other ML detectors use 1 uh in series with the RX coil path (i.e. SD2000). I know the SD2000 is a completely different type detector, but ....

Kind regards,
Max

Regards,
J. L. King

[Max]

where? I see 102u in the schematic, is this the one?

Regards,
J. L. King

Hi,
yes it is: 102u = 10 * 10^2 uH = 1000uH = 1mH

At least I read it as this...

(actually the u is a "K" but change nothing...K -> tolerance =+-10%)

PS: in the bulgarian schematic I see 1uH there... but probably is a mistake cause if it's 102k the only way it could be 1uH is if unit used are nanoHenries...

Kind regards,
Max

[KingJL]

Hi,
this is bill of materials I've made from schematic...

74 resistors... it's a huge monster !

Here it is:
value quantity

resistors
2k2 2
15k 1
470R 1
100R 2
4K7 4
27k 6
47k 10
6k8 2
4M7 1
18k 3
820k 1
330R 4
33k 1
360k 4
10M 5
1M2 1
2M2 1
22k 5
1M6 1
620k 1
100k 11
68k 2
10k 2
91k 1
470k 1
47R 1

capacitors
220n 5
6n8 1
100n 32
10n 4
1u 3
1n 6
2n2 2
4u7 16v 1
470u 16v 3
2u2 16v 1
470n 4

trimpot
10k 1
100k 3

pot
10k 2
100k 1

diodes
1N4148 7
LM336 2.5v 1
S400/1N4007 1

transistors
bc557 2
bc547 1
bc517 1

inductors

1mH 1

where? I see 102u in the schematic, is this the one?

15mH 1

ic
cd4024 1
cd4053 1
cd4066 3
ts27m2 3
ts27m4 1
lm339 1
lm393 2
ne5534 1


Kind regards,
Max

Regards,
J. L. King