Tube Preamp Schematic

Are this transformers usable (z primary 5-20k / z secondary 12.5-50k) 6 tube stereo pre Guitar preamp tone explained

Are this Transformers usable (Z primary 5-20K / Z secondary 12.5-50k)

Preamp guitar tube stage tone explained effectrode common Tube stereo pre amplifier preamp schematics audio power valve vacuum transformer radios circuits electronic secondary list 5a 117v 500v ct Schematic 12ax7 tube 12au7 preamp preamplifier amplifier valve vacuum guitar diagram audio diy tubes circuits circuit amp power mini diyaudioprojects

Transformers usable 20k secondary 50k primary

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StompBoXed - The Guitar Pedal Builders Repository: 12AU7 Tube / Tubed

Are this Transformers usable (Z primary 5-20K / Z secondary 12.5-50k)

6 Tube Stereo Pre