Emission Labs 1605 (Pair)

This is a special order item and is typically delivered in 4-8 weeks.   Description This powerful triode is designed for amplifiers without compromise. This tube is not directly in the family of 300B tubes, but closely related. In few words, it is made for somewhat higher voltage, and it has somewhat higher gain. The higher gain has a practical reason. The amplifier designer (or the ready amplifier) may already have a good working 300B drive circuit. Due to it's higher gain, the 1605 will produce the higher output signal, at the same input signal as a normal 300B driver stage will deliver. (This is maximum 60 Volt AC) The higher output power is achieved by the higher Anode voltage, keeping the Anode current at the same level of tubes like 300B-XLS or 520B. The transformer manufacturer can easily make a good SE transformer for higher voltage, but has problems with much higher DC current. For this reason we have chosen the 1605 to be a somewhat higher voltage tube. Like this, it can b