Camera film and vacuum tubes. They’re sooooo…..20th century.
But there’s a great article in the April online issue of MIX on the use of tubes in pre-amps and other audio processing modules using this antique technology.
MIX is a periodical dedicated to professional audio and music production.
Their online site homepage is HERE.
The article on equipment using tube technology is HERE.
Excuse me now, I have to go check the balance in my bank account.