Highfields Amateur Radio Club
Glossary of Radio Terms.

Appendix:
Battery Details.

This battery is no longer produced. The only source I have found is Small Battery Company, built to order if you really need one of these.

I found a reference to the fact that 2 × 455 in series can replace this battery, there should be enough space, but you will need to fabricate a jumper wire to join them together. This can easily be done by purchasing a pair of snap terminals and joining the wires together.

Equivalents:

204, 490, A490, Eveready 490, 60F40,

Image
not to scale.
Common
Name.
Dimensions.
Height × Width × Length.
Chemical Composition. Nominal Voltage.
490. 94.1mm × 34.9mm × 94.5mm

Contacts:
Large snap connector.

Carbon Zinc 90 volts.

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