On 6 May 2015 at 16:23, Denny Esterline wrote: > Google image search "telescopic desk lamp", about six of the first dozen > have the light supported on a pair of telescopic antennas. > To keep from having "unsightly wires" they use the antenna sticks as the > conductors. So, yeah, 12V on parts that are more or less meant to be > touched while live. > Denny gets the (highly virtual) prize for 1st mention but others are obviously aware of them. Bare metal telescoping arms supporting a lamp head. Arms used for 12 VAC supply. You can connect extra loads along the arms. I tried shorting a - 8A AC into a meter and no sign of dropping current 5+ seconds into test - I chickened out before it did. Semi random 1.X Ohm resistor loaded to 6V. An example in use as an occasional bedlamp lit an added 30mm LED strip (with added half wave diode and largish cap) without visible (to me) change in halogen brightness. Fires could be made with these devices. I'd be surprised if they hadn't been caused accidentally to date. Russell --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .