lumen aeternum
Enlightened
- Joined
- Sep 29, 2012
- Messages
- 891
Before I put away the lights I replace the burnt out bulbs.
This string won't light at all. It was good when I put it up in December.
(miniature bulbs, about 2cm long that you remove from the plastic base & stick another bulb in, bending the wires around on the outside)
My continuity tester beeps all along the string, so I don't think its a broken wire. It should light intermittantly when I jostle it.
I looked at every bulb with a magnifying glass & removed, tested, replaced any dodgy filaments with tested good bulbs.
I even used the specialty tool to send a piezo current which is supposed to release any stuck shunts -- but unless the very first bulb has a stuck shunt, the bulbs upstream should still light.
Anybody got a clue as to this failure mode?
BTW how can you visually distinguish 2.5v from 3.5v miniature bulbs?
This string won't light at all. It was good when I put it up in December.
(miniature bulbs, about 2cm long that you remove from the plastic base & stick another bulb in, bending the wires around on the outside)
My continuity tester beeps all along the string, so I don't think its a broken wire. It should light intermittantly when I jostle it.
I looked at every bulb with a magnifying glass & removed, tested, replaced any dodgy filaments with tested good bulbs.
I even used the specialty tool to send a piezo current which is supposed to release any stuck shunts -- but unless the very first bulb has a stuck shunt, the bulbs upstream should still light.
Anybody got a clue as to this failure mode?
BTW how can you visually distinguish 2.5v from 3.5v miniature bulbs?