Ham Radio: Sony MDR-7506 Headphone Reverse Phase Switch

Video showing how to easily add a reverse phase switch to the Sony MDR-7506 headphones. These switches are found on the higher-end Heil headsets. By reversing the polarity in one ear, the sound can be "moved" around in the head giving a different "perspective" on a received signal. Hard to explain in words, but if you know....you know.
This mod is not Sony 7506 specific, I've done it to other model headphones in the past. The phase switch wiring is the same as used in guitar mods. Plenty of "reverse pickup" guitar wiring diagrams if you search the net.
Digi-key 200MDP1T1B1M1QEH toggle switch (DPDT, 10-48 threads, solder lugs)