Recent content by DrSky

Oh, the circuit I am talking about was from the article Jim Weir wrote for Kitplanes a couple of years back. I was reminded of it because he referenced it in the most recent KitPlanes Aero-electrics column. It just uses a 9volt source, a resister and a capacitor to allow you to hook your mic to...

Shane, thanks for the reply. No, it is not a military helmet, I think I accidentally ordered, or was accidentally sent, the ultra-light version instead of the GA version. I do not remember who I actually bought it from. It is a Fulmer AF155. The adapter that they sent to rectify the problem...

I have a helmet that was wired for ultralight (single plug). I bought an adapter to be able to use it in my experimental which has dual plugs, standard GA arrangements. I can hear fine but there must be some impedance mis-match with the mic because others cannot understand what I transmit. I...