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# TANDY/RADIO SHACK
MEMORY PLUS EXPANSION BOARD (250-1011)
Card Type Memory
Maximum Onboard Memory 512KB DRAM
Data Bus Tandy 1000 expansion bus
IMG IMG 1
+------------------------------------------------------------+
| DRAM CONFIGURATION |
|------------------------------------------------------------|
| Size | Bank 0 | Bank 1 |
|------------------+--------------------+--------------------|
| 128KB | (8) 64K x 1 | (8) 64K x 1 |
|------------------+--------------------+--------------------|
| 256KB | (8) 256K x 1 | None |
|------------------+--------------------+--------------------|
| 512KB | (8) 256K x 1 | (8) 256K x 1 |
+------------------------------------------------------------+
+------------------------------------------------------------+
| DRAM JUMPER CONFIGURATION |
|------------------------------------------------------------|
| Size | E1 | E3 |
|-------------------+--------------------+-------------------|
| 128KB | Open | Closed |
|-------------------+--------------------+-------------------|
| 256KB | Closed | Open |
|-------------------+--------------------+-------------------|
| 512KB | Open | Open |
+------------------------------------------------------------+