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12AX7 to 6N2P toggle switch guide

This post will cover the 12ax7 to 6n2p toggle switch wiring that I used recently in the Aurora Jupiter Preamp. Firstly lets cover the key difference between the two valve types. Typical 12ax7 valves wired for 6.3v AC heaters use pins 4&5 linked together for one side of the filament winding and pin 9 for…

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DIY 12AX7 to 6N2P-EV converter

Aurora Audio 12ax7 to 6n2p converter

For the last 12 months or so I have moved to using russian 6n2p-ev valves due to stock issues and price hikes. To use these valves in normal amps you either have to rewire the filament/heater supply or as I have done here make some converters. It’s an extremely easy project that will only take…

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