Do not confuse with these other batteries listed as "42"
LR44 (RW42); 333 (42); LR42 (CX, MR & SR42).
This battery is unobtainable now. If anyone has further data on this battery please email me and I'll update this page.
A possible replacement that will fit in the physical dimension of the AD42 is a 6 × "C" cell holder with a dummy cell made from an old bolt, 50 mm long, wrapped with card to bulk out the diameter in one of the positions, giving 5 actual cells (7.5 volts) (or a 5 cell holder, if you can find one!).
AD42, Alldry 42, H1190, K788, L5058,
not to scale.
Height × Width × Length.
|Chemical Composition.||Nominal Voltage.|
|AD42.||159 mm × 44.5 mm × 89 mm.|
|Carbon Zinc.||7.5 volts.|