"PEPPER" SC77527 SALT replacement for Tandy TRS-80 Color Computer Coco 2 & 3

Description

This is a Rocky Hill "PEPPER" board which replaces the
SC77527
SALT chip.  This replaces all functions of the SC77527 (power, cassette, and serial port functions), which have all been tested.
You can do a search for "coco_salt_replacement", or YouTube search for "SALT chip replacement board" to find out more about it.
I am not the originator -- I needed a few myself to repair CoCo's and they were out of stock from Rocky Hill, so I ordered some boards and parts to build my own.  Since they still seem to be out of stock on Rocky Hill, I decided to build the extra boards and put them up for sale in case others are looking for them.  I'm keeping the price about the same as on the Rocky Hill web site (not sure about shipping costs) -- I don't want to compete with him, and I will stop selling here if they are available from him again.
I'm including a heat sink, but not attached.  In my testing, using a 64K CoCo 2 with disk drive interface for several hours, it got warm but not alarmingly hot without it.  Adding the heat sink didn't seem to make much difference in the temperature of the chip itself (perhaps the thermal tape isn't great), and it can also get in the way of the keyboard when the PEPPER is in a socket.  You can use the heat sink if preferred.