A simple high voltage programming adapter for the Velleman K8048. Just a 6K8 resistor and an 8-pin turned pin socket is required.

The `plug' may be used in either the 8P or 14P socket and will reduce VPP from ~13V to ~9V.

A good storage location is the unconnected bottom 8 pins on socket 28P (pins 11 to 18).