On Dec 8, 5:15�pm, Jeff Wisnia wrote:
Just what is in the "shunt" built into series string decorative lamp
bulbs which takes over when the filament opens?

Is it something like a PTC thermistor which heats up and melts some
powdered metal into a permanent short?

My curious mind wants to know.

Thanks,

Jeff

--
Jeffry Wisnia
(W1BSV + Brass Rat '57 EE)
The speed of light is 1.8*10^12 furlongs per fortnight.

its a shorting bar of some sort but isnt 100%

I will ask a knowledgable buddy just what and how it works