Information on ETON ZX 48K clone?

[pkersey]

Hi. I'm a serious ZX collector and DIYer from Brazil, and a great admirer of Russian scene. I'm writing this in English as I can't write in Russian, for what I ask you to forgive about this, but I have no other ways of getting in touch with you unless it's in English.

I always had the wish of having a Russian clone in my collection. I couldn't get me a Scorpion or Pentagon yet, but I saw this very curious ETON computer for sale on eBay and decided to buy it. It's an amazing piece of retrocomputing, seems all made by hand!

Nevertheless I have no information about it's expansion ports, they are all incompatible with Sinclair standards, so I come here to ask you a few questions. Do you have any information on it?

For instance, the tape ear/mic ports... how to connect to them?

Looks like it's got an RGB port, but what's the pin-out? Do you have a hint on how I can discover the pin-out?

And the joystick port... which standard is it?

Thanks in advance for any information!

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