Hi all,
l salvaged this circuit board many years ago from some sort of audio equipment. It is a two stage NPN SE4010 circuit.
I’m not very familiar with transistors but think have seen this topology before, though I’m not sure how it works or what is called or used for.
At a guess would it be a high gain first stage with feedback to the input of the first transistor?
Perhaps a mic preamp? Or possibly to directly drive a headphone or small speaker?
Can this be used as a preamp or guitar pedal with added hi z input 1m /68k , 9v V+ and a 50k ? volume pot added at the output.
How could I put this circuit to good use for audio ?
Cheers
Walkman
l salvaged this circuit board many years ago from some sort of audio equipment. It is a two stage NPN SE4010 circuit.
I’m not very familiar with transistors but think have seen this topology before, though I’m not sure how it works or what is called or used for.
At a guess would it be a high gain first stage with feedback to the input of the first transistor?
Perhaps a mic preamp? Or possibly to directly drive a headphone or small speaker?
Can this be used as a preamp or guitar pedal with added hi z input 1m /68k , 9v V+ and a 50k ? volume pot added at the output.
How could I put this circuit to good use for audio ?
Cheers
Walkman
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