Preamplifier RagnaMos 1.5
This preamplifier is built around a small MOSFET, the BS170. The current source is composed of a JFET 2SK170. The gain is just under 4x. The power supply is filtered by a simulated inductor and then divided into two capacitance multipliers. The input and output decoupling capacitors are of audio-grade quality.
This preamplifier is very dynamic with a slightly warmer tone and a very detailed sound.
Preamplifier RagnaMos 1.5
Project images are for reference only. Actual production is based on the manufacturing files on the project page.
Please review the designer's notes (e.g., PCB thickness) and select the appropriate options.
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for issues caused by unsuitable parameter selections.
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