Not entirely related to record manufacturing, but probably still of interest to some:
The vacuum tube electrochemical synthesizer Type 8001 has a built-in miniature galvanic bath, which is too small to plate records in, but the process generates interesting sounds, amplified and further processed through vacuum tube electronics.
More here: https://agnewanalog.com/blog/the-vacuum-tube-electrochemical-synthesizer-type-8001.html
The Sound of Galvanics
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The Sound of Galvanics
~~~ Precision Mechanical Engineering, Analog Disk Mastering ~~~
Agnew Analog Reference Instruments: http://www.agnewanalog.com
Agnew Analog Reference Instruments: http://www.agnewanalog.com