Love the TP-22 (G-9.5)
base fixture in general though confounded at times to properly seat them much less remove them. But as with a S-4
PAR and
Leko, any other
bi-pin lamp
fixture etc, much less plugs be them pin, blade or twist, and even a
crimp terminal, all the above needs after seating the lamp = you can tell, you tend to want to ensure the lamp will stay there with a slight upward tug
etc. Doing less does tend to allow a lamp at times to fall out, if not a
plug connection to come undone
etc. At times and much of the time it is a gear problem you are in testing the
fitting attempting to test - even to the extent of on a
PAR 64 lamp if that
socket can support the weight of the lamp given a
bounce test by way of proper tension of
base on lamp for conductivity, or in the case of a TP-22
Leko socket, that which seems to be seated but perhaps is not or is but with a bad lamp
socket. Been there, done that with lamp falling out even on simlar lamps as with
ETC lamps falling out.
No substitute for that test. Could be a bad lamp
socket, but at times it could just be one that is good and has sufficient retaining clips, just for some reason the lamp was inserted in just such a way that they didn't work.
Again with the inspecting of the bad lamp for what its pins look like as a mirror
image of what the
socket looks like. Looking at the lamp
socket even if it takes flash light and inspection mirror so as to save money on having to go
thru endless good lamps in trashing them before one knows one has a really bad by than
socket, and it takes as perhaps a newer thought not as much discussed, that test of the
socket tension on the lamp and a looking at it so as to ensure the lamp is properly seated. Not like at times taking a pipe and rubber mallet to fully seat
HPL lamps into a new S-4
PAR socket, but at times just as difficult to seat the lamp properly.
As for what might go bad on the lamp/
fixture to inspect, as with the above. Most likely one would want to inspect the fill
pinch seal at the tip of the lamp if it has one or side pinch tit otherwise to ensure this very fragile part has not been damaged or broken. Inspect the
filament grid support - if glass bar holding the
filament supports that's an easy thing to break. On scratches, that is not so much of a problem initially, it is a hard glass and normally won't seriously enough to cause a problem scratch deep enough to
effect the lamp. On the other
hand you do tend to want to clean the lamp fully before use or it might have problems. Inspect the joint between
base and
globe also in that while it normally would not have a problem with cracking by way of bouncing around within a
fixture, improper install might have damaged the cement between
socket and lamp. Dependant upon how damaged this is, would
play a factor in lamp life or its dependability by way of support.
Clean the lamp, re-seat it, test that seat and
play again if good now.
