1. Plus it has an effects loop, and a preamp out for slaving up to other power amps, and so on.

2. The preamp produces the buffered signal necessary for a flat-response direct input.

3. The Pro Q really gives some interesting tonal variations to the sounds generated by the preamp but it does smack of overkill.

4. The preamp is powered by three 12AX7As, giving additional warmth and colour to the sound.

5. Many master volume amps can give a fair simulation of flat out response at reasonable output levels by overloading the preamp.

6. Display the Pre-Amp Gain applies the signal.

7. This paper describes a CRT video circuit with pre-amp and driver control. This system includes pre-amp circuit, clamp pulse production, blank level...

8. A pre-amp component, such as a band-pass filter (32), causes linear distortion.