Something for Moggy... ( and probably lots of others )
Posted: Sun Jul 09, 2017 8:59 pm
coming soon....
Anyway back to the story, what do you get if you Cross a Moggy with a DK'Tronics 4K Character Rom and a ZxPand ?
Lets try it shall we... this first
then this
followed by this...
and the result
.... .... ....
what ? how ? you may ask.... well of course i didn't telll you something this little gizmo does the job...
it sits inbetween the zx81 and the ZxPand and allows UDG charcaters to be stored on the ZXpands Ram. This is the first prototype PCB it has 2 bozo's the first was a missing power pin on the chip that i spotted shortly after placing the order... the second... and how in gods name did i forget... was the refresh signal ! anyway the next prototype board is ordered is a little shorter at just 1.5 inches do wont made you ZxPand stickout too far.
QS scamble
galaxians
the controls are very simple.... a 2 way jumper selects between standard UDG i.e 64 characters and there inverts OR chr$128 which gives 128 charcaters or leave the link off altogether to disable UDG
i estimate the sell price to be between 15 to 20 GBP + postage and packing.
Anyway back to the story, what do you get if you Cross a Moggy with a DK'Tronics 4K Character Rom and a ZxPand ?
Lets try it shall we... this first
then this
followed by this...
and the result
.... .... ....
what ? how ? you may ask.... well of course i didn't telll you something this little gizmo does the job...
it sits inbetween the zx81 and the ZxPand and allows UDG charcaters to be stored on the ZXpands Ram. This is the first prototype PCB it has 2 bozo's the first was a missing power pin on the chip that i spotted shortly after placing the order... the second... and how in gods name did i forget... was the refresh signal ! anyway the next prototype board is ordered is a little shorter at just 1.5 inches do wont made you ZxPand stickout too far.
QS scamble
galaxians
the controls are very simple.... a 2 way jumper selects between standard UDG i.e 64 characters and there inverts OR chr$128 which gives 128 charcaters or leave the link off altogether to disable UDG
i estimate the sell price to be between 15 to 20 GBP + postage and packing.