This battery is unobtainable now. See This Page from the Roberts Radio Collection website for advice on remaking one yourself.
507, B107, BB502, KL7, S107, L5508,
not to scale.
Height × Width × Length.
|Chemical Composition.||Nominal Voltage.|
|B104.||133 mm × 213 mm × 48 mm.|
|Carbon Zinc.||90 volts, |
7 - 15 mA.