electronic components identification
The &quot;gold&quot; metal clad power resistor is made by: -
S.I.R. SOCIETÀ ITALIANA RESISTOR, Via Isonzo 13, 21053 Castellanza (VA), Italy

The general data sheet that describes their metal clad products is HERE and that particular resistor is 68 Ω 25 watts: -

The other component looks like a ferrite core of some sort. The &quot;15&quot; might indicate it has an inductance of 15 μH.
Good luck.