Et 3400a Ebay Demo
Et 3400a Ebay Demo Information Guide
Background of Et 3400a Ebay Demo
Turned on my heathkit microprocessor trainer that I build in the early 80's. You can help support this ... We assemble a new expansion board that replaces the original Learning how to enter, run, save and load programs onto the Heathkit This is a continuation of my video series on the Heathkit Heathkit ET-3400 6800 Trainer/Prototyping computer for sale on eBay by ring_modulate Demonstrating downloading a program over a serial port to the Heathkit
I picked up this Heathkit ET3400 Microcomputer Learning System which was used as a trainer back in the day for Motorola 6800 ... A simple assembly program demonstrated on a vintage 1977 Heathkit An original Heathkit new in-box kit still unbuilt is a bit of a rarity, so when I spotted this incomplete
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Last Updated: June 13, 2026
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