The 2N5484 should work fine in this application, and the pin configuration is the same.
Did you check the resistance of all the resistors before you installed them ? If that 1M5 resistor is 1K5, the generator will drive it fine but a guitar will barely be heard. You can probably measure it without removing it from the build, just reverse the meter leads and take the highest reading.
Did you check the resistance of all the resistors before you installed them ? If that 1M5 resistor is 1K5, the generator will drive it fine but a guitar will barely be heard. You can probably measure it without removing it from the build, just reverse the meter leads and take the highest reading.