#Rotec

2025-01-31

As promised: a complete deep clean of the late #70s #GeminiMicrocomputers parallel #keyboard by #Rotec. Everything disassembled, cleaned, lubed, rubber liners treated with silicone and brand new rubber feet installed. All keys are working, but some don't sit as well in their sockets as they used, so I expect the keys to stay in place if I hit someone with it! :D Also some electrical issues with scanning of the key matrix being incredibly slow - but it lives!! 🙂

And yeah, the "DISASSEMBLE FROM PCB SIDE" sticker was added by me. Taking this apart the wrong way will end in disaster. Learned that the hard way.

No spiders were hurt in this cleaning, although they had clearly taken up residency at some point.

#vintagecomputing #cpm #keyboards

Gemini Microcomputers parallel keyboard by Rotel. Made in 1973. Beige metal case with black underside. Keys in shades of beige and black. 87 keys in total.Gemini Microcomputers parallel keyboard by Rotel. Close up side view with top removed. Keys, springs and keycaps visible.Gemini Microcomputers parallel keyboard by Rotel. Case removed. Top view. Top of PCB visible. Keys visible.Gemini Microcomputers parallel keyboard by Rotel. PCB and key unit removed and disassembled in PCB and metal frame, containing 87 individual key sockets. Some keys remain with copper colored pad visible. Receiver pads for these are visible on the PCB as well as various ICs.
Đỗ Xuân Ngôidoxuanngoi
2021-12-13

Tôi là Đỗ Xuân Ngôi CEO của Công ty TNHH Rotec Việt Nam chuyên bán máy ép bùn, máy lọc bùn, máy cơ khí nhập khẩu, máy phun bi, máy thuỷ lực, máy ép thủy lực chất lượng

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