Tritone Amplification - Nice little subminiature 6205 tube used in a M-Audio Sputnik condenser microphone. Did you know that lots of these subminiature tubes were used for portability designs from car radios
Philips-ECG-6205 Subminiature Tube | Reverb
Fender MTG Tube Tremolo effectpedaal met NOS 6205 micro tube | Bax Music