As you all may know, the 1176's in and outputs are affected by both the in and output transformer.
Especially the output transformer has an offset between hot and cold. If for the calibration, you take wire that connects both sides of the magnet
and ground it against the case, you'll get an even waveform. Now, if you start doing the calibration at this kind of output level, the compression
will be way hotter (positively) than with just the peak measuring between hot & cold without grounding the transformer.
Give it a try and let me know what you're thinking.
Especially the output transformer has an offset between hot and cold. If for the calibration, you take wire that connects both sides of the magnet
and ground it against the case, you'll get an even waveform. Now, if you start doing the calibration at this kind of output level, the compression
will be way hotter (positively) than with just the peak measuring between hot & cold without grounding the transformer.
Give it a try and let me know what you're thinking.