Now showing circuits 21-28 of 28. Sort by
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RO 4-Stage RCA Tube Preamp PUBLICRichter Original 4-Stage Tube Preamp Using RCA Circuits by Kurtus | updated August 16, 2026 |
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RO Experimental Real-Tube Preamp PUBLICRichter Original Experimental Real-Tube Preamp Circuit by Kurtus | updated August 16, 2026 |
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RO Tube-Type Guitar Preamp PUBLICRichter Original Tube-Type Guitar Preamp by Kurtus | updated August 16, 2026 |
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RO Experimental 12V-Princeton PUBLICRichter Original Experimental 12V-Princeton Preamp for Guitar by Kurtus | updated August 16, 2026 |
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RO Real-Tube Fuzzy Booster III PUBLICRichter Original Real-Tube Fuzzy Booster, Version III. by Kurtus | updated August 16, 2026 |
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RO Real-Tube Fuzzy Booster II PUBLICRichter Original Real-Tube Fuzzy Booster, Version II. by Kurtus | updated August 16, 2026 |
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RO Real-Tube Fuzzy Booster I PUBLICRichter Original Real-Tube Fuzzy Booster for Electric Guitar by Kurtus | updated August 16, 2026 |
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RO Hybrid Preamp PUBLICRichter Original Hybrid Op-Amp + Tube Preamp for Guitar by Kurtus | updated August 16, 2026 |
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