Antique Radio Forums • View topic - Microphonics - What causes this?
Experiments in Tube Dampers for Subminiature Pencil Tubes - Effectrode
JJ 12AT7 / ECC81 Preamp Tube - Five Star Guitars
Electro-Harmonix Trio 12AU7 | vivatubes.com
slightly microphonic) 12BH7 GE Zenith NOS "U" getter 1953 (10.0/10.6ma) - Tube World Express | Zenith, Good ma, Grey plates
Sovtek 12AX7WA/7025 – Motor City Guitar
Checking for Microphonic Tubes | Rivera Amplification
Recording Tips 02: Microphonic Vacuum Tubes (part 1) | Tape Op Magazine | Longform candid interviews with music producers and audio engineers covering mixing, mastering, recording and music production.
RCA 1612 NOS Vacuum Tube - Non-Microphonic 6L7 for Broadcast and Recording | eBay
Eclipse | Cochlear Microphonics | Interacoustics
Sovtek 12AX7WA Preamp Tube | Music & Arts
Testing amp for microphonic tube but all or most of them appear to be microphonic : r/guitars