scottfrankland
Responses from scottfrankland
| How can I measure power draw? An accurate power draw cannot be obtained without considering the power factor. In essence this means measuring the phase angle of voltage vs current (as well as measuring voltage vs current). The true RMS power figure is obtained by: P = VI cos p... | |
| What does tube bias do for sound? Grid-bias voltage is almost always *negative* in audio amplifiers. Negative grid voltage inhibits current flow through the tube. Thus, turning the bias pot so as to make the bias voltage *less* negative will have the opposite effect and will *incr... | |
| How do I ground a system with mono block The basic problem is that the interconnects ground the preamp to the power amp. If the individual chassis are then grounded via their power cords you have a ground loop. Even if you use the same AC outlet for all power cords you may still create a... | |
| what is Slew Rate ? Slew-rate refers to a rate-of-change limit. This limit is set by bandwidth and/or output impedance. For example, if an amp uses feedback and has a narrow open-loop bandwidth (i.e., before feedback is applied) then this amp will probably have a poo... |