NOTICE: Be sure to enter the Make & Model of component you are purchasing tubes for. Failure to do so will delay processing of your order. This does not imply that we confirm compatibility. Consult the manufacturer and owner's manual before ordering.
Electro-Harmonix 5U4G
Attention! Before buying any 5AR4, 5U4, GZ33, or GZ37, here is a hot ticket from Uncle Kevvy: Buy the Philips 5R4GYS made in Holland. Click here for info. Very rare. We got a stash of them, and they are incredible. The only thing you have to do it make sure that sure you have enough height clearance... we provide you a picture illustrating the height of them so there's no surprises.
Excellent current production 5U4GB made in Russia. If your amp comes with a 5U4GB, this is usually what manufacturers are using. Solid tube, reliable, and sound great!
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