That G&L L2000 circuit blows me away, it is so flexible and solid
I have an original F100E II (1982?) guitar that has a similarly functioning pre-amp, with a phase and a single-cap change option
it also has a pot that changes the 'buckers to single coil with impedance variations between
I find it solves my battery-died paranoia problem, and I even prefer it in passive mode (as I usually do when it's an option)
I actually have a passive F100 and prefer it to the F100E
I have an original F100E II (1982?) guitar that has a similarly functioning pre-amp, with a phase and a single-cap change option
it also has a pot that changes the 'buckers to single coil with impedance variations between
I find it solves my battery-died paranoia problem, and I even prefer it in passive mode (as I usually do when it's an option)
I actually have a passive F100 and prefer it to the F100E