This battery is unobtainable now. See This Page from the Roberts Radio Collection website for advice on remaking one yourself.
Combined LT (1.5 volt) and HT (90 volt) dry battery for vintage portable valve (tube) equipment.
503, B103, BB503, KL3, S103, L5507,
not to scale.
Height × Width × Length.
|Chemical Composition.||Nominal Voltage.|
|B103.||142 mm × 204 mm × 79 mm.|
|Carbon Zinc.||1.5 & 90 volts,|
200 - 350
& 7 - 15 mA.