I've done the scan, but the internet went to pieces for this evening and I couldn't post it (different computer). I'll post it tomorrow.
Lest you think I'm being hard on these Tangents, I'm not really, as the resulting sound was similar in feel to a good pair of electrostatics of the era, as the midrange "box" colouration was rendered less of a problem due the recessed midband a la LS3/5A and the crossover dips hid the harshness and vagueness that many two-way passive crossovers can suffer from. On orchestral music and using decent valve or FET style amps, the results were enchanting, if not "monitor-accurate."
Tear down these walls; Cut the ties that held me
Crying out at the top of my voice; Tell me now if you can hear me