Manufactured by Bell Radio-Television Corp. in 1955.

The 6P7 was a 3-way portable (AC / DC / Battery), and is noted as being one of several 'Hot-Boxes' available from various manufacturers at the time by John Stokes. The tranformerless design made them lighter, but less reliable and also meant that the mains was directly connected to the chassis - hopefully neutral, but the plugs at that time were not polarised and so it depended entirely on luck, and the fact that the entire chassis was insulated... however one broken knob could potentially (pun intended) see you and 230V making contact through the metal shaft of the control

Valve Lineup: Not currently known