Terry -Originally Posted by KI4OVR
Great. After 40 years, it is not surprising that these HV components are failing.
High Voltage (HV) electrolytic capacitors have a specific operating life. CDE/Mallory actually states this expected life with their product specifications.
Mike Bryce, WB8VGE has a nice Drake AC-3/AC-4 replacement board and the instructions.
When used with the Drake schematics it is a straight forward replacment with a bit of soldering involved.
Since these leads are HV, be patient and make good solder joints !!