NEW H8 BACKPLANE 2.0

60 views
Skip to first unread message

Norberto Collado

unread,
Mar 24, 2021, 1:47:55 AMMar 24
to se...@googlegroups.com

Hello Glenn,

 

You mentioned that the H8 Backplane v1.4 that you have is fine as it is. If that is the case, I will leave as it is right now and not to worried about shifting the 25-pin down connector by one pin. That will be a lot of work as it is hard to focus on the 25-pin components as they are shifted to an angle when editing.

 

Attached is latest updates to such board. I need to fix some lettering issues on K8 connectors and JP3 and JP4. Also update labeling to V2.0

 

Thanks,

Norberto

 

H8-BACKPLANE-SIDE1.png
H8-BACKPLANE-SIDE2.png

Steven Feinsmith

unread,
Mar 24, 2021, 4:15:52 AMMar 24
to se...@googlegroups.com
I assume that you have experience adjusting the 25-pin down components as they are shifted to an angle when editing. It seems that the KiCAD program is flawed and gives you a hard time. I think something that you use the old version of KiCAD may have problems possibly solved with the latest release of KiCAD?

--
You received this message because you are subscribed to the Google Groups "SEBHC" group.
To unsubscribe from this group and stop receiving emails from it, send an email to sebhc+un...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/sebhc/75DA06B1-8037-49E1-8324-CAD75EED81F5%40koyado.com.

Norberto Collado

unread,
Mar 24, 2021, 11:49:14 AMMar 24
to se...@googlegroups.com

The problem is with the focus. For example if I try to select P2, the tool might select P11 instead and then I moved the wrong slot by mistake. The board was design in 2009, so it could be old version on new version as well. Yesterday for example I deleted D6 and it deleted P21 and D6 at the same time. I did not notice that  P21 was gone after a while when looking at the whole board.

 

This is the only board showing this behavior. The Front Panel board was fine while editing as it was designed in 2009 as well.

 

Thanks,

Norberto

Norberto Collado

unread,
Mar 25, 2021, 12:57:21 AMMar 25
to se...@googlegroups.com

Norberto Collado

unread,
Jun 23, 2021, 12:02:23 AMJun 23
to se...@googlegroups.com

I’m done with the H8 backplane and will order a few boards to test it out on the H8 chassis.

 

It has a few improvements with the capability to break the backplane to support two CPU’s boards on same enclosure. Also added PTC fuses to control the current when using the PC power supply to avoid burning out the backplane in the event of a short. Also includes the circuit to put the PC power supply in standby when using the PC power switch.

 

Board view here: http://koyado.com/heathkit/New-H8-Website/h8-backplane.html

 

File: http://koyado.com/heathkit/New-H8-Website/download/h8_backplane_2_0_view.png

 

Thanks,

Norberto

 

 

norberto...@koyado.com

unread,
Jul 2, 2021, 4:23:20 AMJul 2
to se...@googlegroups.com

Updates:

 

Backplane shipped, so hopefully it will be on my hands by this weekend or by next week. I hope for the best.

 

Norberto

 

From: se...@googlegroups.com <se...@googlegroups.com> On Behalf Of Norberto Collado
Sent: Tuesday, June 22, 2021 9:02 PM
To: se...@googlegroups.com
Subject: Re: [sebhc] NEW H8 BACKPLANE 2.0

 

I’m done with the H8 backplane and will order a few boards to test it out on the H8 chassis.

--

You received this message because you are subscribed to the Google Groups "SEBHC" group.
To unsubscribe from this group and stop receiving emails from it, send an email to sebhc+un...@googlegroups.com.

norberto.collado koyado.com

unread,
Jul 6, 2021, 3:04:10 PMJul 6
to se...@googlegroups.com
Backplane boards on hold in Portland until next week. I have no idea on why???




From: se...@googlegroups.com <se...@googlegroups.com> on behalf of norberto...@koyado.com <norberto...@koyado.com>
Sent: Friday, July 2, 2021 1:23 AM
To: se...@googlegroups.com <se...@googlegroups.com>
Subject: RE: [sebhc] NEW H8 BACKPLANE 2.0
 

Steven Feinsmith

unread,
Jul 6, 2021, 4:15:36 PMJul 6
to se...@googlegroups.com
I have the same message from DHL and FedEx from China. I work on printing the keypad sheet for you now.

Take care,
Steven

Norberto Collado

unread,
Jul 7, 2021, 9:52:59 PMJul 7
to se...@googlegroups.com

H8 BP boards came this afternoon. Pictures attached. It looks nice and hopefully it will work after all the changes.

 

Norberto

H8-BP-SIDE1.jpg
H8-BP-SIDE2.jpg

Dave McGuire

unread,
Jul 7, 2021, 9:55:12 PMJul 7
to se...@googlegroups.com
On 7/7/21 9:52 PM, Norberto Collado wrote:
> H8 BP boards came this afternoon. Pictures attached. It looks nice and
> hopefully it will work after all the changes.

Very nice!!

-Dave

--
Dave McGuire, AK4HZ
New Kensington, PA

George Farris

unread,
Jul 7, 2021, 10:43:51 PMJul 7
to se...@googlegroups.com
Yes they look nice, look forward to a hold of one of those.

George
Reply all
Reply to author
Forward
0 new messages