The Heathkit ET-3200 Digital Design Experimenter
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- Опубликовано: 6 сен 2024
- In this video I take a look at a piece of vintage Heathkit equipment, the ET-3200 Digital Design Experimenter.
Links to book:
lulu.com: www.lulu.com/s...
Amazon USA: a.co/d/2j99BIc
Amazon Canada: a.co/d/8GFKxaE
Nice breakdown. I remember as a teen in the early 80s, my dad brought home an ET3400 from a microprocessors course he took for work. So I got to play with it for a few days before he had to return it. However, he was allowed to keep the EE3401 microprocessors course. I studied the course, and even as a teen I was able to understand the material. Was never able to afford an ET3400 as a young person, but in my mid 50s was able to snag 2 of them on eBay - one complete unassembled kit and one good working condition ET3400A. I really wish Heathkit was still in business…
I remember building 10 of these and 10 of the analogue ones for my high school back in the late 70s.
Very cool that you're making your book available from lulu!
Congrats on the new book. It looks awesome.
Nice! I need one of those, and your books! I miss those days, and hungrily spending hours going through HeathKit catalogs and wishing. I hope I can learn how to get my ET-3400 up and running, and pick up in my old age, where I left off as a kid in the 80s hoping to learn all this stuff (the OLD way before learning new stuff), that my parents discouraged and wouldn’t let me spend my money on. Now the only thing stopping me is time and product and parts availability, and not knowing if I’m buying good pieces or not. I at least have an ET-3400 from eBay though, but I don’t know if it’s good, or how to get started with it…
I tried to lean on one of these back in the early 80s, borrowed it from a friend who had stolen it from his high school ;), big complaint it would do one to three chip circuit but after that you ran out of room and the only result was frustration. There is only so many times you can make the same blinky light circuit and not not get board and frustrated as a teen.
I think the solderless breadboard is the same size as the separate one you showed, minus the snap-on power rails. Visually it looks small, but once you deduct the power rails you have the same number (or very close to) of tie points available.
I wish I still had the one I bought, I gave it to one of my sons long ago and it got lost between NM and Hawaii when he moved.
I had that one in the blue case. I’d have paid more if they had had a version with a larger solderless breadboard! I think the reason the power supply had +/-12 volts was some earlier DRAM chips (and RS232 line drivers) needed them. This would be suitable for a test-bed for an Arduino project if it had 3.3v compliant outputs. This seems feasible given the discrete circuitry for the +5 volt supply; it should be possible to switch in (or out) an extra resistor somewhere to drop the +5 volts to +3.3 volts, and bring the switch out the back side of the case. The problem would be getting the outputs to supply 3.3 volts for logic high.
I have the ET-1000!