Re: will it compute? btl's attempt to build the H4
Posted: 10 Dec 2019 10:17
by btl
Thanks Ingo,
i checked but they were correct. then i checked my Reset IC, and indeed, no idea how, but i ordered the wrong part.
Same functionality, but "active high" logic, soinverted logic than expected. I'll try to find the correct one, but mouser
wants 20€ shipping for a 0.58€ part. If someone knows a seller in EU with reasonable shipping, let me know.
For now, i left out the chip and rely on the reset switch only. I know, thats not good and may produce trouble,
but its only temporary.
Re: will it compute? btl's attempt to build the H4
Posted: 10 Dec 2019 10:51
by IngoQ
I think I ordered a couple more than I needed, let me check tonight. I could then send you one, if you PM me your address. You are in Germany as well, right? And the part number was SN74LVC1G11DBVR ?
Re: will it compute? btl's attempt to build the H4
Posted: 10 Dec 2019 11:12
by btl
Hi,
yeah, i'm in germany. The parts was U$6 RESET_IC SOT143-4 STM6315RGW13F
it would be awesome if you have spare for me!
greets,
btl
Re: will it compute? btl's attempt to build the H4
Posted: 10 Dec 2019 13:09
by btl
OK, now that i've overcome my first oopsie, i connected a floppy disk drive.
Time to run a GB6!
20191210_135333.jpg
It does compute! :cheer:
Re: will it compute? btl's attempt to build the H4
Posted: 10 Dec 2019 13:43
by PhilC
Well done and interesting to see it's a little too bright on your 1084 as well.
Time to experiment with those 3 resistor values on the rgb circuit.
Re: will it compute? btl's attempt to build the H4
Posted: 10 Dec 2019 14:45
by PaulJ
btl wrote: 10 Dec 2019 13:09
OK, now that i've overcome my first oopsie, i connected a floppy disk drive.