DIY Audio

ePot.V4 prototype board layout

ePot.V4 LDR Preamp Controller & Stepped Attenuator With Optional Plug-in Solid State Buffer & Linear Power Supply

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Tortuga Audio began work on LDR (light dependent resistor) based volume control in 2009 and went commercial with its first LDR based preamplifier in 2012. Over the past decade we’ve evolved our core preamp controller/attenuator design through four iterations. We are now developing our fifth iteration which we refer to the V4. Prior iterations included the V1, V2, V25, and more recently the V3. This article discusses the upcoming […]

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LDR3x DIY preamp controller board

Tortuga Audio Releases LDR3x Preamp Controller Board for DIY Community (Aug 8th update)

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As a follow-up to our original post below, we wanted to share some unsolicited feedback from a recent LDR3x customer. Note that the LDR3x board is our second generation LDR preamp board design that builds on the success of the original LDR1/LDR6 passive preamps. A pair of LDR3x boards will be the twin beating hearts of our  upcoming LDR3B Balanced Passive Preamp product. “Today I received the LDR3x board and

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LDR3x preamp controller circuit board

Tortuga Audio Plans LDR3X Preamplifier Controller for DIY Community

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As we work to expand our line of next generation  preamp products  built around light dependent resistors (LDRs), we also plan to soon introduce an LDR based preamp controller board, and related products, for the Do It Yourself (DIY) audio community. As we’ve previously announced, Tortuga Audio is actively developing a balanced version of its preamp line – the LDR3B Passive Preamplifier. This development work has led us to

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