[Coco] [Color Computer] Extended BASIC ROM and RAM upgrade for my COCO 1 (with 16KB)

[unbonnevie]

Hi,

Just bought a COCO 1 (with 16KB) and would like to find out how do the below.

1) I would to get the extended BASIC ROM.  I 've read that the COCO 1, mine is model 26-3004 with 16KB, has an extra ROM socket to insert the extended ROM.  I am sure the ROM code itself is available on the net, but don't know where to be honest, but finding the actual ROM chip is much harder.  If there is a place I can buy please let me know or let me know of the right ROM chip to use and burn the ROM code in, etc.

2) I would like upgrade the COCO 1 to have 64KB.

Thanks for any tips!