Heath ET-3400 / ETA-3400 Anyone?

Hagstrom, Paul hagstrom at bu.edu
Mon May 4 00:50:33 CDT 2015

I snagged a copy of them a while back from the Yahoo group and put them in my Dropbox hierarchy.  Not my scans, I don't have the originals.

Assembly manual in two parts:



Software manual in two parts:



On May 3, 2015, at 9:08 PM, drlegendre . <drlegendre at gmail.com<mailto:drlegendre at gmail.com>> wrote:

Thanks, I'll look into it - but I haven't a Yahoo! login, nor do I desire
one at this late date..

Can someone with access download & serve the relevant files?

On Sun, May 3, 2015 at 7:26 PM, steve shumaker <shumaker at att.net<mailto:shumaker at att.net>> wrote:

There is a Yahoo group named "ET3400" that has manuals, schematics,
projects etc. posted in the files section

On 5/3/2015 1:46 PM, drlegendre . wrote:

(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

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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