Re: INS8073 - What I wanted, but never got.
Remember that the usb to ttl converters don’t always (almost never) support 110 baud.
As you have an ‘138 for address decoding you could add a couple of diodes to pull the data lines to select 4800 baud. You might need to swap the address and enable lines on the ‘138 to allow decoding for both ram and the baud rate selection.
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