What type of memory does the Echoplex use?
The Echoplex uses ordinary 30 pin SIMMs. It can use any type. Parity, non-parity, 2 chips, 3chips, 8 chips, 9 chips, PC, Mac, any speed. It all works. These simms are available from any company that sells computer memory, and as of this writing are typically priced between $10 and $20. If you have some old computers lying around, you might already have the right kind.