Semoic Audio Valve Vacuum 4Pins Tube Psvane 811A Fu-811 Fu811-J for Amplifier HiFi Tube 1Pcs

hi my name is Joe stop/go welcome to full compass I'm with jet city amplification and I want to tell you a little bit about a new product from jet city called retro valves what retro valves are as they are actually analog replacement devices for tubes vacuum tubes and they're actually what's inside these it is a small little transformer and an FPT circuit that replicates what a vacuum tube does when it goes into a high gain mode or into clipping so it will distort and even order harmonics just like a tube like a vacuum tube and by the way these tubes will replace any type of preamp tube that will be either like a 12 ax7 a 1287 1213 amp tubes that would typically be found in a tube guitar amplifier like this jet city guitar amp that's right here now there are actually three different colors you can see that the the two that I have in the amplifier one is amber there's a red one and then