Wireless of the Week - week 34

[Mike K]

Originally Posted by Chris Suslowicz

I'll keep a lookout for a C.A.V. lamp for you.

T
raph.)

The bulbs used are 'special', being mounted on a stalk to position them at the focus of the reflector (so the short and long-range lamps need different bulbs). You can run the lamp quite successfully from a pair of 996 lantern batteries - the internal cells are the same ('F' size) as the ones in the post-WW2 'X' cells.





Chris.

At a hamfest years ago, a chap gave me a box full of those stalk 10V bulbs for the Lucas lamp, must have been 100+ ( Osram brand ? ). I have a few left somewhere. I sent most of them to a chap in the UK for free , he was using them in his scout troop .

A guy I knew in our MV club worked for the Govt. survey mapping dept. , they used those lamps as survey markers for the theodolite over long distances .

BTW those lamps were also made here , I have a complete set . Aussie disposals had the tripod mount NOS , I bought two of them .