King Cobra PCB

[kt315]

http://compass-metal-detector-forum.548136.n2.nabble.com/QUESTION-FOR-GROWDUDE-td7288221.html#a7333572

I have over 300 of the Gold Mountain control housing like on their Cobra and Thunderstick models NEW and pre-drilled I'll sell cheap. Have no use for them if you hear of anyone interested let me know. Keith 903-734-7773

[kt315]

[kt315]

[kt315]

Another question Q2 to Q8 are replaceable BF245 by 2SK246,

directrly not. pins are unfitable. electrically maybe yes. pins of BF245 is GSD, same like for TIS75. I choiced BF245 because
they are at low price at ebay.

and also C1 50pF can be replaced by one of 47 0 51PF truth?.

yes, certainly.


And also the SMD capacitors have about 16 or 35v 47uf which would be better.

SMD tantalums you set according a voltage on lines of the schematic. not some definition what is better. if 8V you stay cap on 10V and more,
if 12V you stay cap on 16V and more, if you see 6V you stay cap on 8V and more, if you see 100V you stay cap 150V and more.

[sabios]

Another question Q2 to Q8 are replaceable BF245 by 2SK246, and also C1 50pF can be replaced by one of 47 0 51PF truth?.
And also the SMD capacitors have about 16 or 35v 47uf which would be better.

[kt315]

sabios;190457]check the diagram and C41dice is 47uf and the list is 220 uf 10v this is correct?

this cap is bypass capacitor (decoupling cap), NO big differency what you will stay. in range 47-220uF all will be OK. I stay 220 and this why in part list 220.
only cap dimension on board place limits cap value.

otherwise the plate dimensions are 15 x 11 cm right?

Board size 122,7 x 91,3mm

[sabios]

check the diagram and C41dice is 47uf and the list is 220 uf 10v this is correct?

otherwise the plate dimensions are 15 x 11 cm right?

[kt315]

it is correct PCB??????????

[mohandes]

I could say all this right, you double-compressed PDF so it would be easier to print but not if it's okay if I would say okay.

PDF is the gerber King Cobra ..: Ceño fruncido:[ATTACH]29806[/ATTACH][ATTACH]29806[/ATTACH]

it is correct PCB??????????

[kt315]

SaBIOS dear friend, welcome to King Cobra forum! your espaniol is PERFECT! to my sorry my level in your native is equal full zero =(

[sabios]

GERBER1?

I could say all this right, you double-compressed PDF so it would be easier to print but not if it's okay if I would say okay.

PDF is the gerber King Cobra ..: Ceño fruncido:gerber1.pdfgerber1.pdf

[mohandes]

I believe Moha... you are on the right way now... after longest roving into geotech labyrinthes... you come out from duskiness to light.

hi
with your help .
regards

[kt315]

I believe Moha... you are on the right way now... after longest roving into geotech labyrinthes... you come out from duskiness to light.

[mohandes]

sorry, second batch of boards has ended. all were spreaded. thank again whom supported. I shared a file in P-CAD and you can order boards without limitations.
it is free for using. I will not order new boards' batch because low call and low activity from folks I waiting. following project will be Cobra II board if that is interesting for anybody.

regards

i will try again pay you and buy DVD , and get you new version .
i try to destroy Boycott.
regards

[kt315]

sorry, second batch of boards has ended. all were spreaded. thank again whom supported. I shared a file in P-CAD and you can order boards without limitations.
it is free for using. I will not order new boards' batch because low call and low activity from folks I waiting. following project will be Cobra II board if that is interesting for anybody.

regards