This is based on Jakob Erland / Gyraf DIY tube mic project - see
http://www.gyraf.dk/
and click the "DIY" link
for this and other wonderful pro-audio DIY projects.
General pictures of the construction, click here and here
For photos of the grill construction click here.
PSU construction in progress
G7s in action: DIY suspension mounts & How do they sound? click here.
Comments and addenda here.
This include some notes on voltages in the finished microphones and
PSUs.
Where to buy the bits - components and suppliers are here
Seth Glassman's version of the G7 microphone is here
Lulu the spacecat! Tube mods to Oktava mics and scratch-built mics
http://home.earthlink.net/~altaflux12ax7/
Tim Campbell's DIY G7-style mics:
http://www.timcampbell.dk/micfab.htm
http://www.timcampbell.dk/mics.htm
Gus Smalley's good-looking home-made condenser mics are here.
Scott Dorsey's transformerless FET circuit for improving cheap condenser
mics
http://www.pfarrell.com/music/shanghaimic.html
Mojave Audio kits and articles - I did this mod on an MXL2001 and was
very pleased with the results
http://www.mojaveaudio.com/press.html
And see also my Frankenstein's Microphones and my Neumann vandalism for some fun stuff based on Dave Royer's cathode follower design
For photos of my MXL2001 after "Royer" mod and a DIY shock-mount go
here.
Some links to old articles on building condenser mics and capsules,
curtesy of PRR and Kent Stephenson. Some of these files are quite large.
http://www.conditionedresponse.com/DIY/microphones/index.html
http://music-club.rutgers.edu/headfonz/DebenhamOrig.pdf
And of course you can talk about it all at The
Labs forum.