Yep !!! EF where the first Falcon models with the EECV.
ED's were the last Falcon with the EEC-IV
If you want REAL technical details on the difference between the EECIV and EECV, check out
http://www2.austin.cc.tx.us/Electron/cloud/tc_eec.htm
This stuff is a little above my head, but Im trying to learn it.
Please ppl, take a look, and see if there is much here that we could use !!
(Eg EEC Readers, EEC program traces, 8061-8065 Assy/Disassy, EEC Schematics and binaries). Heavy electronic technical info !