NOS-5R4WGA-B-Y

Known as the "Potato Masher", the 5R4WGB was developed for use in B-52 bombers and is very rugged and long lasting. It will drop the B+ and can handle well over 200ma of current. This rectifier is great to use when you want to drop B+ and get more sag out of your amp. 

Price is for a Single Tube