Greetings friends. This 6N1P Headphone Amplifier has been bouncing around in my head for a while, and I had a few questions about construction and usage.
Circuit is a White Cathode Follower adapted from the Morgan Jones Headphone Amplifier. I also plan to use the Hammond 269AX and I will start with AC power for the heaters, elevated 85-90v. If hum is an issue I will build a DC heater circuit.
questions:
Does R7 take the load when headphones are not plugged in?
With a switching jack, should load resistors be installed to take the load when headphones are not plugged in?
Should headphones be plugged in during power-up or shut-down?
Should the signal return be connected directly to the circuit ground, or separated by a resistor + x2 cap?
Could this unit function as a preamp for a tube power amp?
thanks for taking a look!
w
Circuit is a White Cathode Follower adapted from the Morgan Jones Headphone Amplifier. I also plan to use the Hammond 269AX and I will start with AC power for the heaters, elevated 85-90v. If hum is an issue I will build a DC heater circuit.
questions:
Does R7 take the load when headphones are not plugged in?
With a switching jack, should load resistors be installed to take the load when headphones are not plugged in?
Should headphones be plugged in during power-up or shut-down?
Should the signal return be connected directly to the circuit ground, or separated by a resistor + x2 cap?
Could this unit function as a preamp for a tube power amp?
thanks for taking a look!
w
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