Testing my latest microphone mod design - an electret capsule adapter скачать в хорошем качестве

Testing my latest microphone mod design - an electret capsule adapter

These little boards are intended to simplify using a basic two-terminal electret mic capsule (with built-in FET preamp, as they normally have) with a balanced XLR mic input on a mixer or mic interface. This video shows fitting the assembly and testing of the first board, and comparing it with a commercial pencil style condenser mic - one of the MXL603S pair I have over my desk. The article for this on my website is here: https://robert-jenkins.co.uk/site/ind... The schematic for the PCB is here, it should also work fine on stripboard if you want to build your own. There is also a link in the page to the ready-built boards on ebay. https://robert-jenkins.co.uk/site/ima... The PCB module is essentially the same as one possible configuration of the larger discrete component mic mod board, but everything surface mount and pre-assembled other than the transistors, resulting in a much smaller item, that can be used in other mic cases or an in line enclosure. It is built using the electret input configuration with the same multiple supply filtering / decoupling, the bipolar splitter, plus my NPN output stage from that design, with the addition of a gain pot as I used in my dynamic preamp module. Ceramic caps are not used anywhere in the design. There is also a short follow-on video with the info I forgot to include in this, in my enthusiasm to see if they worked! - That shows why I wanted something like this, using it with a headset mic and one of it's stripboard predecessors.