GE 5U4GB Black Plate Rectifier Tube

The GE 5U4GB is a classic rectifier found in many circuits from the 50s-60s and is a great option to consider when rehabilitating vintage circuits. Great for both guitar and hifi amplifiers!  Here are a things to remember: Shorter plates are less noisy (on average) Longer plates are tonally more complex i.e. more "depth/fullness" (on average) Reach out to a Fuzz expert if you would like more help determining what tubes are best for you! We can be reached at Support@FuzzAudio.com or by clicking the chat icon in the lower right hand corner of your screen.  Need help deciding what tubes are best for you? Use our plate cheat sheet and vacuum tube buyers guide to determine which tubes are best for you. Likewise, you are welcome to reach out to us directly at Support@FuzzAudio.com or by using our chat located on our shop page if you have further questions. NOS vs. ANOS vs. Test NOS These designations are strictly used to describe the cosmetic condition of our tubes. All tubes we sell