It sounds like you have two bias cells… I have Rogers and Marconi radios that use them. They are 1.5 volts.sometimes you can check them with an ohmmeter and you may get a small reading. The radio will probably work without them.. I have used a 1.5 volt hearing aid battery in place of them and it does work.. Just make sure the polarity is correct
Probably otheres on the forum can shed more light on this topic
