How would Pleiades one transistor amplifiers sound with the BC109?

At your risk.
All safety precautions should be followed.
Any voltage or current can be a ngeroys.
Hearing must be protected form high Sound presure levels.


How would BD109 sound in a circuit (see schematic) similar to Pleiades BC139 for driving a speaker or headphones? With just a transistor and perhaps one resistor or so? (And if needed for impeadnce matching an output trasformer). In class A (electrons flowing all the time)


Or a front stage microphone booster amplifier. With input transformer if needed.


Or if needed a Pleiadss (R,L) gentle slope high pass filter just after the mic for flat frequency response from record producer's brain to listener's brain.
Just one ring coil in series with a resistor.
See for example previous posts including references:
For example:
https://euroelectron.blogspot.com/2019/07/the-washer-trick.html