Changes
Created page with 'The Amstrad ROM Expansion was published 1988 in the Practical Electronics magazine by Simon Dean. It is possible to use up to six expansion ROMs (16 kB each) with the board. Beca…'
The Amstrad ROM Expansion was published 1988 in the Practical Electronics magazine by Simon Dean. It is possible to use up to six expansion ROMs (16 kB each) with the board.
Because there are only a few parts needed, the price of the board is inexpensive.
== Part List ==
<pre>
R1 620 Ohm 0.25W
C1-C6 100nF ceramic
C7 22uF elect
IC1 74LS32
IC2 74LS373
IC3 74LS138
IC4 74LS02
IC5 74LS20
D1 1N4148
</pre>
== Resources ==
[[File:Amstrad rom expander.pdf]]
[[Category:Hardware]]
Because there are only a few parts needed, the price of the board is inexpensive.
== Part List ==
<pre>
R1 620 Ohm 0.25W
C1-C6 100nF ceramic
C7 22uF elect
IC1 74LS32
IC2 74LS373
IC3 74LS138
IC4 74LS02
IC5 74LS20
D1 1N4148
</pre>
== Resources ==
[[File:Amstrad rom expander.pdf]]
[[Category:Hardware]]
