Technical Design Lab SMB

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Technical Design Labs SMB

SMB - System Monitor Board contains 1k EPROM in a 2708 typically containing Zapple monitor. Also 2k RAM. 2 serial ports rs232 or current loop, 1 parellel port.

TDL SMB.jpg

Note: The ribbon cable connecting to the "Interface One" daughter board containing DB25s spaced to install in a Imsai rear panel. I haven't seen this board previously. I'd like to find some documentation for it for the record. Use the contact form if you have the docs.

TDL SMB Interface One Rev 3.jpg

Zapple SignOn.jpg

The Zapple monitor sign on message. I'm having trouble with input - so close!

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