Definitive led thread for 80s (5 Viewers)

[RubyCruiser]

Rear defroster calls for two type B incandescent bulbs, one with an amber condom. Is there special part number for that sleeve or bulb vs. the white one?

 

[Trollhole]

X2. Since one has a 50-50 chance of getting the LEDs inserted wrong, and given the fact that the base will barely survive just one twisting into place, I ruined 3 of the 4 LEDs I purchased by wrecking the very soft plastic base. I want to go back to the incandescent, and after reading most of this entire thread as well as lots of confusing pages from obscure retailers, does anyone have a good link (IE still in business) for the T4 1/4 incandescent replacements? I prefer not to pay $9 each since there are quite a few to be replaced.

Ged a red marker and attach some test leds from a 12v source with the + marked. Then test each led and mark the +side with a red dot. Way easier.