New Lucas H52 headlamp spider - 1
New Lucas H52 headlamp spider

The early ’30s Lucas headlamp has no internal wires, but instead uses a ‘spider’ with brass fingers to connect the switch, ammeter and bulb terminals. The original is made from thick pressed card, and the brass fingers, with spring steel supports, are riveted to it. After 90 years, these items are usually in poor condition. I had two, both broken, so have fabricated a replacement using the brass fingers, cleaned and annealed, and a new base made from circuit board material. The reinforcing fingers are shaped from 12 thou shim steel, and the assembly is riveted together with hollow brass rivets.

4 thoughts on “Making Connections

  1. Hi Andrew, I sent an email asking you if anyone reproduces the brass valve plugs in the UK, i may have miss sent it. I know of JAP and other repros. I am also about to tackle my electrics. Regards Joe.



    1. Hi Joe – thanks for the comments. I did reply, but it must have got lost in the ether. I don’t know where you could find the valve caps; I’m not aware of anyone making reproductions. I don’t know where you’re based, but I’ve had success with Wanted ads in the Vintage Motor Cycle Club’s (VMCC) journal. Failing that, autojumbles or magazines perhaps. Good luck – Andrew


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