Energy Chamber and Armageddon Clock
No, putting counters on Armageddon Clock with Energy Chamber will not allow you to deal damage with Armageddon Clock.

Energy Chamber's ability places "Charge Counters" onto Artifacts, whereas Armageddon Clock's ability instructs you to deal damage equal to the number of "Doom Counters" on it. While you can combine counters with the same name, counters of different names are not interchangeable.


  121.1. A counter is a marker placed on an object or player that modifies its characteristics and/or interacts with a rule, ability, or effect. Counters are not objects and have no characteristics. Notably, a counter is not a token, and a token is not a counter. Counters with the same name or description are interchangeable.