I was surprised to see the mention of LEDs as an acceptable retrofit for Pagoda gauges.
FWIW, on the Pelican Parts 911 forum this subject was explored exhaustively. Many different LED "bulbs" were used with the Ba7s base (some hand made, some special order) and the result was always the same.....the beam was always too directional. The nature of a LED's beam does not lend it self to washing the area of the gauge face properly. Not to mention, many did not care for the harsh color as opposed to the vintage (yellowish) feel of an incandescent bulb.
The conclusion at the time was that new bulbs could make a difference in brightness. I experimented with the hard to get Kugellampe 12V/3 Watt Ba7s (GL12.330.001640), to replace the Ba7s 12v 2 Watt bulbs, but with no appreciable advantage.
Curious as to the latest feedback on the subject...