300B-Z is compatible with 300B, direct heating cathode and medium power consumption. Two triodes can be used in the class A amplification. It is adapted to be used in audio frequency range which requires high output power of 100W. 300B-C long-life design, use pure graphite anode and plate power dissipation can reach up to 60W. If the design parameters are adjusted properly, single tube can use as class A amplifier, and can delivery output power higher than 20W.
lGold-plated socket pins
lWhite ceramic tube socket
lCarbonized nickel plate reduces reflection of electrons, reserving the original audio signal
lFilament hooking by using single slice of spring reduces the parasitic capacitances
All of our vacuum tubes are directly come from the Shuguang Electron Group Co., Ltd. HunanChina; it is 100% factory price. No agent, distributor, or any mediators, etc. in between the buying process. All vacuum tubes are passed the strict quantity test of factory of Shuguang. Any tubes are come with a qualified certificate of the SHUGUANG factory.