[minima] Re: Minima's PCB
- From: <jerry@xxxxxxxxxxxxxxxx>
- To: minima@xxxxxxxxxxxxx
- Date: Thu, 23 Jan 2014 01:41:08 -0700
I think putting that serial board on the DB9 connector is a good idea.
then the builder can place it anywhere he wants. I, too, would prefer
having it on the back of the case. Jerry K5LRU
-------- Original Message --------
Subject: [minima] Re: Minima's PCB
From: Adrian Preda <ady.preda@xxxxxxxxx>
Date: Thu, January 23, 2014 2:22 am
To: "minima@xxxxxxxxxxxxx" <minima@xxxxxxxxxxxxx>
Thanks Jerry for checking the pcb!
I choose smd caps for the filter mainly for the reason of space and
their good stabiility than ordinary ceramic tht's. When I will know this
pcb design is 101% correct I might make a version with THT also. Same
for relays, I can make some versions with other than Omron's pinout.
Please indicate some general use types of relays, and I will see if this
can be done without affecting to much the circuitry of the pcb.
For the serial port interface: I will try to see what I can do to put
this also on the digi board. In first I choose not to put it because it
lengthens the pcb to much, and my goal is to keep it maximum 100x50, for
the reason of mounting it on small boxes also (with hight from 60-65 mm
and up). I want to make a small board for it and solder between the pins
of a DB-9 connector, that can be mounted on the backpanel of the box for
instance (something like this to make an idea:
http://www.bravekit.com/image/STK200_board.jpg )
Ok, I hope tonight to come up with the digi board as well
Best 73's
Adrian YO4HHP
On Thursday, January 23, 2014 8:20 AM, Sinosh Pushparajan
<sinoshpk@xxxxxxxxx> wrote:
Thanks Adrian for the PCB design ,looking forward for the other sections
too
73
Sinosh
VU3PKQ
On Thu, Jan 23, 2014 at 8:13 AM, Ashhar Farhan <farhanbox@xxxxxxxxx>
wrote:
sorry, saw them on the foil side. any specific reason for the smd
caps?
- f
On Thu, Jan 23, 2014 at 8:07 AM, Ashhar Farhan <farhanbox@xxxxxxxxx>
wrote:
I can't see the 100pf caps on the crystal filter.- f
On Thu, Jan 23, 2014 at 7:59 AM, Ashhar Farhan <farhanbox@xxxxxxxxx>
wrote:
Adrian, I hope you are aware that I corrected some minor stuff on the
circuit. I see that most of it is there. I used relays that resemble a
16 pin dip ic pin out. the relays in your layout appear different, but
that's something I can fix.
do think of keeping the serial port on the arduino board. it is just a
simple two transistor circuit. those who don't want it, can leave
soldering those parts out. but then, you're the king.!
- f
On Thu, Jan 23, 2014 at 7:53 AM, Ashhar Farhan <farhanbox@xxxxxxxxx>
wrote:
fantastic!
- f
On Thu, Jan 23, 2014 at 4:21 AM, <jerry@xxxxxxxxxxxxxxxx> wrote:
Good job Adrian. I'll look it over tonight and see what I can find. I
also liked your blog. Jerry K5LRU
-------- Original Message --------
Subject: [minima] Minima's PCB
From: Adrian Preda <ady.preda@xxxxxxxxx>
Date: Wed, January 22, 2014 3:30 pm
To: "minima@xxxxxxxxxxxxx" <minima@xxxxxxxxxxxxx>
Hi group,
I just did a first issue of the main PCB.
You can see it here with my remarks:
http://yo4hhp.wordpress.com/2014/01/22/pcb-for-minima-general-coverage-transceiver/
Will be good if a "second eye" check for any mistakes or unusual
things.
I will check myself again tomorrow with the mind clear :)
The digi board is on the way.
73's
Adrian YO4HHP
--
Sinosh P K
Scientific Assistant(Chemical)
National Test House( Department of Consumer Affairs),
Tharamani, Chennai-113
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