Scodiddly
Well-known member
This all started as "I need one for my tool bag", though now it's somewhat of a product.
It's a wireless mic transmitter input coupled to a headphone amp, so that you can test lavalier or headset/earset mics without having to go set up a wireless mic system. At my day job we do this a lot, since we rent out a lot of wireless gear.
The design is nothing special, and I'm sure it could be tweezed a lot. But it works, and the ones we've been using at the shop still work just fine. So it's a safe, cautious design.
There's a schematic linked for a basic Shure-compatible design. I've also done ones for both flavors of Sennheiser, and I have a request for Lectrosonics which has a very weird bias voltage thingy in the spec.
http://www.scotthelmke.com/lav-amp.html
http://www.scotthelmke.com/Lav-tester-shure.jpg
It's a wireless mic transmitter input coupled to a headphone amp, so that you can test lavalier or headset/earset mics without having to go set up a wireless mic system. At my day job we do this a lot, since we rent out a lot of wireless gear.
The design is nothing special, and I'm sure it could be tweezed a lot. But it works, and the ones we've been using at the shop still work just fine. So it's a safe, cautious design.
There's a schematic linked for a basic Shure-compatible design. I've also done ones for both flavors of Sennheiser, and I have a request for Lectrosonics which has a very weird bias voltage thingy in the spec.
http://www.scotthelmke.com/lav-amp.html
http://www.scotthelmke.com/Lav-tester-shure.jpg