MES E10 (screw bulb) claw-type holder for 4" speedo and tach illumination:
The bulb can be a fiddle to fit in the claw bulb-holder as the claws get in the way of fingers gripping the small globe, but there is a technique that makes it easier.
MES E10 (screw bulb) tube-fitting for 80mm speedo and tach as well as fuel and dual gauges:
T10 (capless/wedge) holder as received on a replacement harness for a 1980:
Alternative BA9 (bayonet) fitting (top) to replace tube-type: