So I learned something today – again.

I have been looking for 7-segment displays for the IRS panel.

I could not find the exact size for the digits. But from the pictures it appeared that the digits were a bit bigger than on the altitude panel.

I use 0.36″ on the altitude panel, so I needed something a bit bigger. So I ordered 4 x 4-digit 0.40 inch displays from Tayda Electronics. They arrived today, together with some white 0.36″ for the clock.

Well it turns out that the 0.40″ displays are waaaay larger than the 0.36″ displays.

The north/south part needs 7 digits (1 letter and 6 digits). The east/west part needs 8 units (1 letter and 7 numbers). So you need unites like on the picture. And as you can see the 0.36″ units can merely be squeezed in to the frame. 0.40″ units… Forget it.

So not I am out looking for 15 x 0.36″ yellow displays.