I looked through my box of VIC-20 parts. Shown is my homemade joystick (I was never much of a game player), the programmers manual and my expansion board. The DC-DC generates the programming voltage. From what I remember, I could only program the old Motorola EPROMs, not the standard 27xxx. The 5220C is an LPC used for the speech. LPC is what was used in the Speak and Spells. I wanted to use a standard Centronics based printer with it and added a port for it.