DIY IWISTAO 6N3 Vacuum Tube Preamplifier Finished Board SRPP Circuit

This is a finished vacuum tube preamplifier board with standard SRPP circuit and built with acrylic plate base.The preamplifier tube uses 6N3, and the rectifier uses 6Z4 tube rectifier, and a dedicated toroidal transformer.

The background noise is better controlled, making sound better. The board is debugging-free, simple to make and design is reasonable, the noise is relatively low, also there is no impulse current at startup, and a speaker protection circuit is added.

#iwistao #tube preamplifier #srpp circuit

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