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Washington Island Books
2/4/2003 - Memdoub-2 has sold out
Memdoub-2: a memory doubling kit for the CMOS Super III keyer
easy to build
hardware expansion of the EEPROM memory used on the Super CMOS III keyer (from Idiom Press).
doubles the memory capacity by adding another EEPROM device
in parallel with the existing EEPROM.
user selects which memory is active through the use of an SPDT switch
connects to your Super CMOS III keyer with a ribbon cable.
Memdoub-2 is 1.5” by 1.1” in size.
Downloadable files for Memdoub-2
manual (26k) of the Memdoub-2
schematic (56k) of the Memdoub-2
memdoub.htm (3k) - a text file with more information on Memdoub kits
md22.gif (27k) - download a picure of the Memdoub-2
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