Custom built microphones

Building tube microphones is a passion I've had for over 10 years and I know the secrets behind all of the classics.

I have a big collection of original tubes and parts and I have a lot of knowledge and experience with current producers of microphone capsules and transformers. I can build microphones from ground up or modify transistor microphones such as TLM 67, U87 and TLM49 to tube microphones. If you have original parts they can be included. If you have specific wishes they can most certainly be met.

All of my builds are without any compromise. The difference in price between the microphones are simply because some specific bodies, capsules, tubes etc are more expensive, not better.

If you're interested just send me an e-mail to tomas@borgstromskainstitutet.se