RNB Enterprises sold a range of AIM 65/SYM-1/KIM-1 extension cards, ranging from a VAK-1 Motherboard, RAM and EPROM cards anda prototyping card.

Photo by Eric Dennison
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VAK-1/2/4 manuals RNB Enterprises User Manual VAK-1 Motherboard Schematics of VAK-1 Motherboard User Manual VAK-2, -3, -4 (2x 8KB SRAM boards) |

Photo by Eric Dennison
Byte Magazine 1979 01 RNB Enterprises SYM-1 KIM-1 VAK-X boards advertisement
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Byte Magazine 1979 01 RNB Enterprises SYM-1 KIM-1 VAK-1to VAK-8 boards advertisement |
See also:
The Rockwell KIM-1
Once in a while I hear a myth on the internet about Rockwell manufactured the KIM-1. That myth needs to be debunked.
...
KIM-1 PCB Edge connectors
The KIM-1 needs 2 edge connectors.
The specifications are: card edge; PIN: 44; 3.96mm
When you search for those, ...
Dungeons And Dragons Dice Simulator For The KIM-1
In Compute! Issue 13, June 1981, a small program is published. It runs on an unexpanded KIM-1, showing a random number a...
MICRO
MICRO The 6502 Journal
Published by Robert M. Tripp, The Computerist
Published from 1977 tot 1983. The first y...