Some software and utilities for the CoCo here .
Later model PAL Tandy TRS-80 Colour Computer 2 with and extended colour basic and originally 16K RAM.
Modified RF output for composite output and added audio output jack next to the power button.
Switch on left side of the case is to switch between standard reverse output and true lower case.
Top cover removed.
Modified the RF modulator output jack by rerouting a composite signal to it instead (yellow wire).
White and green wires are for the true lowercase hack which the later MC6847 is capable of displaying.
Upgraded to 64K (2x 4464 DRAM replaces the original 4416 DRAM)