probably has only very limited use vs a dedicated autoformer such as Bob Crites' 3636 which has 1dB steps. Also limited for things like compression drivers and horn which need little if any contouring
this is what the reflected Z looks like from an 8 ohm resistor on various taps of a 15 watt transformer
PWK considered the high reflected Z of his Heresy at HF to be a virtue - - it might be with some triode amps
this is what the reflected Z looks like from an 8 ohm resistor on various taps of a 15 watt transformer
PWK considered the high reflected Z of his Heresy at HF to be a virtue - - it might be with some triode amps