The cathode current is only 0.15 mA, but the preamplifier delivers a 3.5x gain. There is more detail on his website. It would be interesting to subject this circuit to a full audio analysis and ...

It’s a simple preamp circuit that has graced the small-signal ... A quick check applying some audio to it showed that it was indeed amplifying audio and it didn’t sound bad, but I needed ...

An electronic circuit that amplifies and equalizes ... Typically built into an audio or A/V receiver, phono preamps also come as external devices for units without phono inputs as well as for ...