drip electronics | Est. 2005 | 20 years
designed in Kiqötsmovi
1/13/25 UPDATING SERVERS - SITE WILL BE UP AND DOWN , WHILST I EDIT THE SETTINGS - EMAIL MIGHT BE DOWN FOR AN HOUR
2025 winter line
drip opto 6
we are pleased to announce the release of the classic drip opto 6 (revB)
opto 6
Opto 6 Optical Compressor: A Celebration of Legacy and Innovation
To honor 20 remarkable years, Drip proudly reintroduces one of its most cherished designs: the Opto 6 optical compressor. This masterfully crafted single-channel compressor is a modern homage to the revered 1968 LA-2A compressor, renowned for its warm, lush sound and unparalleled performance in recording studios worldwide.
The Opto 6 is a meticulous reproduction of the classic audio and gain reduction circuit, powered by a thoughtfully selected tube complement. With one 12AX7 and one 12BH7A serving as the signal amplifier, alongside another 12AX7 and 6AQ5A dedicated to the reduction circuit, this design ensures that your audio retains its integrity while delivering that sought-after tube warmth. For those who wish to elevate their experience even further, the option to integrate a 6X4 rectifier tube offers an elegant alternative to conventional 1N4007 diodes.
What distinguishes the Opto 6 is not just its heritage but its innovative features. The incorporation of dual T4B optical attenuators presents an exceptional versatility through selectable release speeds—fast and slow—allowing for precise control of your sound dynamics. This is craftsmanship that resonates with both nostalgia and modernity.
Designed with a spacious 16x7-inch PCB, this exceptional unit guarantees expansive track spacing and isolation, translating to an extraordinarily quiet operation. The 2024 updates enhance its functionality; optional SMA connections replace traditional RCA cables, and provisions for external power supplies can now be integrated effortlessly, providing additional filtering and DC heater support through the Drip universal PSU board.
Further attention to detail is evident in the enriched capacitor footprint options, accommodating higher-end components. The PCB is designed for substantial ATOM capacitors, while remaining compatible with contemporary axial 500V capacitors as ATOM capacitors reach the end of their lifecycle. Additionally, the output capacitor footprint is optimized for premium capacitors like the Mundorf Supreme series, ensuring every note resonates with clarity and richness.
The Opto 6 stands as a testament to Drip’s commitment to quality and innovation, celebrated and revered by a global community of users. Step into a world where classic artistry meets modern technology and experience the magic of the Opto 6 optical compressor—an essential instrument for any discerning audio engineer. Embrace the beauty of sound with Drip, and let this extraordinary design elevate your recordings to new heights.
drip opto 6 (mono) pcb and two metal t4b optical attenuators (fast and slow) price $300usd
ORIGINAL 2014 MANUAL (LINK)
updated bom to follow / some manual links are obsolete or discontinued .
includes: unpopulated pcb and two fully assembled and tested t4b optical attenuators. (no additional parts or components included)
designed in Kiqötsmovi
contact : info@dripelectronics.com
drip t4b gen 4
Introducing the Drip Electronics T4B Opto-Attenuators: Precision, Performance, and Legacy
The DRIP T4B Opto-Attenuator sets a new benchmark in precision audio engineering, delivering unmatched performance through a meticulous blend of science, innovation, and historic preservation. Unlike conventional plastic shells, our custom deep-drawn metal enclosures provide superior shielding, durability, and an aesthetic that pays homage to the original 1960s designs. Paired with a matching octal socket and metal base, the enclosure ensures optimal grounding and ease of integration into your system.
Inside, the DRIP T4B is engineered with excellence:
Gold-Plated Circuit Boards (ENIG): Our custom PCBs feature plated-through holes and grounded photo cell terminals for superior shielding and conductivity.
NSL 5910 Photo Cells: Carefully selected for their ideal response, offering consistent and reliable performance.
Adjustable Calibration: Integrated trimmers for both the light panel and resistor allow long-term optimization as components age, ensuring unmatched accuracy and matching.
Premium Components: From Bourns and Vishayt trimmers to pure copper wiring and 60/40 solder, every detail is crafted for reliability and performance.
At DRIP, we don’t rely on arbitrary testing standards. Instead, our rigorous measurements are grounded in the principles of physics and semiconductor science, inspired by the groundbreaking work of Albert Rose, N.V. Joshi (Photoconductivity, Art, Science, and Technology), Richard H. Bube (RCA Laboratories), and the legendary Solomon Mirovich Rivkin. These pioneers laid the foundation for precise characterization and testing of photoconductive materials, which informs every step of our process.
Using state-of-the-art equipment—including Keithley source measure units, differential amplifiers, and photomultiplier tubes—we ensure each T4B Opto-Attenuator meets the highest standards of precision, performance, and stereo matching.
Our fourth-generation T4Bs are available in Fast, Medium, and Slow release times, allowing you to select the ideal characteristic for your audio application. The Slow variant, with its smooth, traditional response, is particularly prized by engineers for its authenticity and performance in classic designs.
For a limited time, our Fast and Slow T4Bs are available to complement the release of our DRIP Opto6 PCB set. Experience the unmatched quality of DRIP Electronics and elevate your sound with precision-crafted T4B attenuators.
Built for professionals. Inspired by history. Backed by science.
