If leaking then replace. Sometimes a new one is bad. If all is working and specs fine leave it alone. I like to change mine when I get a new tube amp, but this an ocd indulgence rather than a sonic necessity. Jallen
Bottom line is don't buy old gear unless you are prepared to replace all coupling caps, wire, lytics, tube sockets and tubes. This is quite common. Jallen
You must have a verified phone number and physical address in order to post in the Audiogon Forums. Please return to Audiogon.com and complete this step. If you have any questions please contact Support.