hifijohn
Active Member
This has to the craziest of all my mic designs, its inspired by those wild horn speakers that audiophile are in love with now.The element is 4" speaker I took out of an old boombox, the red cylinder in the back holds a 6.3v transformer wired in reverse to act as a step up transformer.
https://imgur.com/a/olrN8JU
https://imgur.com/a/olrN8JU