In article ,
Thomas Prufer wrote:
And BAY15d may have different-height pins, with two base contacts and case for
ground, for double-filament automotive lights that need a single mounting
orientation (brake & running light, I think is one...)

There are offset pins (height wise) for the older stop/tail bulb. And then
a different offset (not 180 spaced) came in for others - like amber
flasher bulbs.

--
*Save the whale - I'll have it for my supper*

Dave Plowman London SW
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