If you're using NOS tubes for the first time (i.e., they haven't been used in 50 yers) it's usually something inside the tube that's settling. I don't think moderately dirty pins would cause crackling.
Cleaning tube pins and sockets
I have an older tube preamp which uses four of the type 6922 tubes. I have NOS tubes in there now. Once in a while I get some noise from one of the channels. Reseating the tubes clears up the noise problem. Obviously, it's time to clean the contacts. I can easily clean the tube pins but how can I clean the socket? The socket is soldered into the PC board. I was thinking about using a toothpick wrapped with a small piece of the thick blue paper towels that are sold in auto parts stores and working the toothpick in and out of the socket holes. I have Caig DeoxIT and ProGold on hand. Can I get by with either or both of these? I read that ProGoldPlus is recommended for high temp applications such as tubes. Any tips (or warnings) from you tube guys?
Thanks
Thanks
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- 5 posts total
- 5 posts total