Highfields Amateur Radio Club
Glossary Appendix.
copyright date

Battery Details.

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.

Equivalents:

503, B103, BB503, KL3, S103, L5507,

Image
not to scale.
Common
Name.
Dimensions.

Height × Width × Length.
Chemical Composition. Nominal Voltage.
battery B103. 142 mm × 204 mm × 79 mm.

Contacts:
Polarity marked holes for pins.

Carbon Zinc. 1.5 & 90 volts,
200 - 350
& 7 - 15 mA.

Back to Equivalents page.