RP - RAM Pack - memory storage media
Most of us electone players from the late 80's until 1993-4, when the disks had conquered this
field, have used this very expensive media for storing our electone's registrations.
Each RP could contain the settings of only 1 electone-settings, and cost around 15$ US.
This little card contains a small 8kb EEPROM memory (by Sanyo) and a small 3 volts Lithium
CR2025 battery (the original was also by Sanyo) which is glued and melded (!!) into to main board.
Nowadays the batteries of most of these media cards need to be replaced - and it is not so trivial
as it sounds...
There was two kinds of RPs:
RP-3 (8kb) -
Can contain either Registrations, panel and global settings
or User voice data (or F.M.P in HS series.).