10 Drill Set 1, Ex 3- COMPRESSION, compression (slow release)

09 Drill Set 1, Ex 2- DISTORTION, slight (1-3%) overload distortion ('clipping')

11 Drill Set 1, Ex 4- STEREO, stereo reversed

13 Drill Set 2, Ex 1- STEREO, one channel reversed polarity

14 Drill Set 2, Ex 2- No change

16 Drill Set 2, Ex 4- EQUALIZATION, high frequencies (10 kHz) cut

17 Drill Set 2, Ex 5- DISTORTION, slight (1-3%) overload distortion ('clipping')

18 Drill Set 3, Ex 1- AMPLITUDE, 3 dB louder

19 Drill Set 3, Ex 2- STEREO, mono to pseudo-stereo

21 Drill Set 3, Ex 4- EQUALIZATION, L channel lows boosted 6 dB @ 150 Hz