New Products

The TU-8150 is the little brother to the TU-8200 and allows for both tube and opamp rolling so you can have fun tuning the sound to suit your own l...

Elekit TU-8550. Tubes are not included. For specifications please see this page.

Pesante is a general use case with no heatsinks. We've added baseplates and aluminum rear panels for easy machining. Pesante models have steel top...

This is the Iron Pre from Zen Mod - limited quantities and hot off the press. There are two versions of the project: Balanced / Differential and Si...

"About a year and a half ago I released a power supply filter board and thump suppression relay circuit to go with the DIY Sony N channel VF...

An equalizer for full range speakers that addresses the common need for a bit of of a bump in the bottom end and a dip in the top. "Most of the ti...

Among the appreciations of DIYers is stuff that works simply, well, and cheap, not necessarily in that order.  This project is an effort to as...

This is the ACA Mini "Completion" kit, which provides a number of parts needed to complete the ACA Mini project. It does not include the PCB or act...

This is the ACA Mini "Essentials" Kit, which provides the bare essentials you would need to get started with the project.  Learn more and discuss t...

A custom chassis for the WHAMMY project. Please note that the photos show the headphone jack, aluminum knob, and various other parts fitted. These ...

WHAMMY PCB 218mm x 160mm (8 5/8" x 6 5/16")  Black with gold immersion traces 70 µm / 2oz Copper

A chassis to complete the B1 Korg kit. 230x170 full aluminum chassis, anodized black with white printing, or silver with black printing Internal ...

This is Nelson's DIY H2 Harmonic Generator, Version 2. This kit consists of one PCB and two selected J113 JFETs, good for stereo operation.  You ca...

The Complete Linear Audio Library, is a must-have for every audiophile passionate about audio engineering, instrumentation, and acoustics. Created...

A range of matched JFET offerings suitable for do-it-yourself audio projects. Learn more about the matching requirements or Idss choice for your pr...

Included in this kit are the following semiconductors needed to complete an Aleph J amplifier. This kit provides for 2 channels (one stereo amplifi...

The PO89ZB, an inline DC filter for SMPS wall warts, preamps, HPAs, Korg NuTubes, B1, etc.   This filter is limited to single rail 48V DC, 3A appli...

Two pairs of high quality gold plated 5-way binding posts with keyed washers. Features 4 binding posts included (2 with red washers, 2 with black ...

This is a high quality 36V universal SMPS, as used in the DIY Sony VFET amplifier. It takes an input of 85-264VAC at 47-63HZ via a standard IEC320...

A high-voltage, low noise, fully protected regulator for tube circuits T-reg is a high voltage regulator aimed at tube-level high voltage amplifier...

This is the ACP+ (Amp Camp Pre-Amp + Headphone Amp) PCB, as built at Burning Amp Festival in 2019. PCBs ($25) The pre-amp PCB along with the ground...

The DIY BIAMP 6-24 kit is a stereo analog active biamp crossover circuit designed for high flexibility. Featuring 12 discrete Jfet buffer circuits...

Alps RK27 breakout PCB, to assist with affixing an Alps RK27 potentiometer to the front of your chassis. Pot and connector strip not included, this...

The Burson V6 Vivid and Classic are discrete component drop-in replacements for many types of op amp: Dual AD823, AD823AN, AD8066, AD8620, AD712, ...