Pam apparently was a subsidiary part of the Pye company. This set has an identical circuit to a Pye P114BQ. Pam's claim to fame is that they were the first British company to make a portable transistor radio.

This set originally ran from two batteries. One 1.5 volt for the heaters and another 90 volt for the HT. As 90 volt batteries aren't available anymore I made a small power supply to run the radio. I wound the transformer secondaries myself as I had trouble finding a suitable transformer ready made. These