The UE-100 is a 75 watt dissipation triode with a mu of 23 and full ratings to 30 MHz. It looks like an HF-100 and was used mainly for diathermy service. United also seems to have made this same tube with the designations R-100 and TYPE 100 as shown in the second example.

Length = 7.25" Diameter = 2.82"
Max voltage = 1750
Max current = 150 ma
Fil voltage = 10
Fil current = 2.5 amps         GOTO INDEX