The JAN 5963 is a high grade USA miltary tube that has a well balanced sound. Great replacement for a 12AU7.
- JAN 5963 Review by Greg
- I purchased this JAN 5963 almost a month ago. It has perfect microphonics with my audio preamp. tap the case and all is quiet compared to a nice pair of jj's these replaced. Way to go doug. my tube's are a matched pair which is even better if you guy's have a guitar amp. (Posted on 11/29/16)