PhilCs H5 A3 build

Share your building progress here!
User avatar
PhilC
Moderator
Moderator
Posts: 3865
Joined: Fri Mar 23, 2018 8:22 pm

PhilCs H5 A3 build

Post by PhilC » Sun Oct 25, 2020 4:18 pm

So here's the progress on the first of whats likely to end up being three or four H5s.
20201025_155752.jpg
20201025_155752.jpg (274.4 KiB) Viewed 924 times
Since the majority or the nuisance stuff is now SMT then I've not really stuck to any installation plan and just soldered things in in a random order, hence the S2 in place already.

I've only got to order the serial chip, 74ls02 and the reset chip and it'll be game on to get it finished.

I've gone for an SMT MMU as my most reliable H4 has both GLUE and MMU as SMT chips. Although I have to locate a GLUE as ive only got PLCC versions of that at the moment. Time to see if I can raid any of my donor STs for the GLUE.
If it ain't broke, test it to Destruction.

User avatar
Icky
Moderator
Moderator
Posts: 2763
Joined: Sun Sep 03, 2017 10:57 am
Location: UK
YouTube: https://tinyurl.com/yals4a3k
Contact:

Re: PhilCs H5 A3 build

Post by Icky » Sun Oct 25, 2020 4:32 pm

Nice work @PhilC :thumbup:

It is definitely an easier build this time round with the majority SMT done.

EDIT: just noticed your screwdriver off to the right. I have the exact same ones and if memory serves me right I bought them years ago.

User avatar
PhilC
Moderator
Moderator
Posts: 3865
Joined: Fri Mar 23, 2018 8:22 pm

Re: PhilCs H5 A3 build

Post by PhilC » Sun Oct 25, 2020 4:45 pm

@Icky yeah I've had them ages as well.
If it ain't broke, test it to Destruction.

User avatar
PhilC
Moderator
Moderator
Posts: 3865
Joined: Fri Mar 23, 2018 8:22 pm

Re: PhilCs H5 A3 build

Post by PhilC » Tue Oct 27, 2020 8:34 pm

A little more progress tonight.

All of the sockets are in place, all the ports and all of the SMT chips. I have a whole shed load of header pins to solder in next and then its time to power it up.
If it ain't broke, test it to Destruction.

User avatar
PhilC
Moderator
Moderator
Posts: 3865
Joined: Fri Mar 23, 2018 8:22 pm

Re: PhilCs H5 A3 build

Post by PhilC » Wed Oct 28, 2020 9:35 pm

And its all ready for plugging in and testing, well, minus a few jumpers that is.
20201028_212818.jpg
20201028_212818.jpg (283.42 KiB) Viewed 818 times
Compared to the Alpha and the H4 this has been almost a pleasure to build so far.
If it ain't broke, test it to Destruction.

User avatar
JezC
Trusted Guru
Trusted Guru
Posts: 916
Joined: Mon Aug 28, 2017 11:44 pm

Re: PhilCs H5 A3 build

Post by JezC » Wed Oct 28, 2020 9:40 pm

Looking good @PhilC !

User avatar
PhilC
Moderator
Moderator
Posts: 3865
Joined: Fri Mar 23, 2018 8:22 pm

Re: PhilCs H5 A3 build

Post by PhilC » Fri Oct 30, 2020 6:12 pm

Does this count as working?
20201030_181040.jpg
20201030_181040.jpg (74.4 KiB) Viewed 772 times
I've also got a problem with the reset circuit but it boots after a bit of fiddling.
If it ain't broke, test it to Destruction.

stephen_usher
Trusted Guru
Trusted Guru
Posts: 1247
Joined: Mon Nov 13, 2017 7:19 pm
Location: Oxford, UK.
Contact:

Re: PhilCs H5 A3 build

Post by stephen_usher » Fri Oct 30, 2020 6:17 pm

Well... it boots to the desktop. I think that counts. :-)
Intro retro computers since before they were retro...
ZX81->Spectrum->Memotech MTX->Sinclair QL->520STM->BBC Micro->TT030->PCs & Sun Workstations.
Added code to the MiNT kernel (still there the last time I checked) + put together MiNTOS.
Collection now with added Macs, Amigas, Suns and Acorns.

User avatar
Icky
Moderator
Moderator
Posts: 2763
Joined: Sun Sep 03, 2017 10:57 am
Location: UK
YouTube: https://tinyurl.com/yals4a3k
Contact:

Re: PhilCs H5 A3 build

Post by Icky » Fri Oct 30, 2020 6:22 pm

I think you have lost your Blue from your RGB @PhilC :)

User avatar
PhilC
Moderator
Moderator
Posts: 3865
Joined: Fri Mar 23, 2018 8:22 pm

Re: PhilCs H5 A3 build

Post by PhilC » Fri Oct 30, 2020 6:30 pm

Icky wrote:
Fri Oct 30, 2020 6:22 pm
I think you have lost your Blue from your RGB @PhilC :)
It certainly looks that way, let me see if I can find it again
If it ain't broke, test it to Destruction.

Post Reply

Return to “H5 A3 USER BUILDS”