PhilC's H4 Mongrel edition build x 3
Re: PhilC's H4 Mongrel edition build x 3
@PhilC I'm surprised you don't have a magic solution for me. I guess my weakness here was having a lot of spares from the remake build and my ability to assume I had all the non-descript parts... Lots of 05, 06, etc used in the remake. Then Exxos slips in the 07 that totally passed me by.. If I could give up all these assumptions I would be miles ahead.
Re: PhilC's H4 Mongrel edition build x 3
That was exactly my problem too Paul. You could always make an 07 with discrete components
If it ain't broke, test it to Destruction.
Re: PhilC's H4 Mongrel edition build x 3
Na.. not that desperate... believe I'll run all my plugin chips through the remake to insure they work, maybe give the board a good going over with the microscope to check for any irregularities.
Re: PhilC's H4 Mongrel edition build x 3
Sounds like a plan to me Paul
If it ain't broke, test it to Destruction.
Re: PhilC's H4 Mongrel edition build x 3
So the first of my three boards is now assembled and metered out all ok with the pullups etc but I've yet to get it to boot into Diagrom properly.
Having a quick look and it looks like I have a couple of issues with the address bus. So once I get time, as real life keeps getting in the way, I shall meter put all the address and data lines. No doubt I've forgot to solder something as usual
Btw, for my first board, I chose to go the plcc route for glue, mmu, etc but for the next board I'll mount the smt versions of those chips, so we can get a good test of all the possible assembly options.
I've also put both a simm socket and the falcon ram headers on this board but the next two are likely to be simm only affairs.
More to come soon.
(Wish I had an LA)
Having a quick look and it looks like I have a couple of issues with the address bus. So once I get time, as real life keeps getting in the way, I shall meter put all the address and data lines. No doubt I've forgot to solder something as usual
Btw, for my first board, I chose to go the plcc route for glue, mmu, etc but for the next board I'll mount the smt versions of those chips, so we can get a good test of all the possible assembly options.
I've also put both a simm socket and the falcon ram headers on this board but the next two are likely to be simm only affairs.
More to come soon.
(Wish I had an LA)
If it ain't broke, test it to Destruction.
Re: PhilC's H4 Mongrel edition build x 3
@PhilC ,you will be happy to know I didn't use any your magic smoke. I'm thinking of using your plan and try a SMT glue and emu on the second board which arrived today, thanks @exxos.
Re: PhilC's H4 Mongrel edition build x 3
Oh I was only borrowing it from @rubber_jonnie anyway
If it ain't broke, test it to Destruction.
Re: PhilC's H4 Mongrel edition build x 3
Re: PhilC's H4 Mongrel edition build x 3
I was thinking RJ may want to keep his fingers away from the DAC...
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viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
https://www.exxosforum.co.uk/atari/store2/ - All my hardware mods for sale - Please help support by making a purchase.
viewtopic.php?f=17&t=1585 Have you done the Mandatory Fixes ?
Just because a lot of people agree on something, doesn't make it a fact. ~exxos ~
People should find solutions to problems, not find problems with solutions.
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Re: PhilC's H4 Mongrel edition build x 3
@PhilC
Dude, really!!
I'm not doing magic smoke ATM anyway, I'm just breaking stuff so it doesn't work at all
Hence the saying "If it's broke, there's no magic smoke"
Collector of many retro things!
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...
800XL and 65XE both with Ultimate1MB,VBXL/XE & PokeyMax, SIDE3, SDrive Max, 2x 1010 cassette, 2x 1050 one with Happy mod, 3x 2600 Jr, 7800 and Lynx II
Approx 20 STs, including a 520 STM, 520 STFMs, 3x Mega ST, MSTE & 2x 32 Mhz boosted STEs
Plus the rest, totalling around 50 machines including a QL, 3x BBC Model B, Electron, Spectrums, ZX81 etc...