Here is a small field recording of the Disneyland Train going by from left to right. Made with the gear I posted above. The mics were attached to the top of my ears.
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I have managed to make a dummy head, an 8 inch holophonic mic, a 4 inch holophonic mic and a jecklin disc. IMHO, the 8 inch holophonic mic made the best recordings for speakers and headphones. If your interested, I can post recordings made with the holophonic mics.