No. There are no lights in the bulbs. They are just shells. One pic is a light from the gen. The other is the ones that just came. I've tried to take the little bulb out of the ones in the gen that work. They don't come out. The one that burnt up the other day I decided to see what it would take to get it out. They are crimped, glued and soldered into the shell
@grywitt the reason why I asked the question is as follows:
The Lightbulb's originated in the latter part of WWII and were used in almost all American Aircraft.
Those Bulbs had 3 parts:
1. a panel mountable socket with two solder leads
2. a 28V AC/DC Light Bulb
3. A cap, either clear or colored.
After WWII, GE started using these Bulb Types on their kitchen stoves adding two more Bulb variants with 115VAC and 230VAC rating. They served as warning lights, to remind the overworked housewife that she had left a burner or the oven on.
The Defense Industry then started using those again ( app 1950 Korean War ) and this is where it got complicated:
The sockets now were made in four versions:
1. Regular panel mountable socket
2. Panel Mountable Socket with Resistor for 28V Bulb to be operated on 48V Telecommunications equipment
3. Panel Mountable Socket with Resistor for 28V Bulb to be operated on 115 VAC
4. Panel Mountable Socket with Resistor for 28V Bulb to be operated on 230 VAC
Then came the bulbs with permanently affixed caps as an additional variant. These became mandatory for all equipment which was tested and had to meet the MIL-STD for vibration and acceleration / G Forces as the removable caps would fall off at times on Generators, Tanks, Jets etc etc
All together there was a about 200 different part numbers available for all sorts of possible combinations.
Bendix used to have all off them in their printed catalogs until 1998.
Unfortunately, I threw all our catalogs and databook's out in early 2000, because everything was being published in pdf, except the Bendix / Allied Signal stuff as Bendix was bought out by Knorr Bremsen........