Heath ET-3400 / ETA-3400 Anyone?

drlegendre . drlegendre at gmail.com
Sun May 3 15:46:45 CDT 2015

(Still in SBC mode..)

I'm feeling a need for one of the Heathkit ETA-3400 memory & I/O expansion
units for my ET-3400.. or at least a set of documentation such as could be
used to build one of my own.

Anybody have an ETA-3400 they'd be willing to part with..? A set of docs in

As it sits, all I've got here is a copy of the ET-3400 'Modification
Manual' which details the changes which must be made to the ET so it will
connect to the ETA module.

Thanks for any assistance..

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