Circuit Boards

The all new Universal PSU V3.0. Bigger and badder than ever, complete with a well illustrated build guide. Fully compatible and optimized for the ...

This pack includes one Soft Start Board and one Speaker Turn-On Delay and DC protector board.  They are not available for purchase separately. Soft...

This is the line stage Wayne Colburn presented at Burning Amp 2018. Read more about it in the Wayne's BA 2018 Linestage discussion thread on diyAu...

This set of circuit boards will make the Aleph J amplifier of Nelson Pass. This amplifier is a direct descendant of the legendary Pass Labs Aleph 3...

This pair of F-5 Clone circuit boards use the same circuit as the Nelson Pass / Firstwatt F-5 model.  This is V3.0 of the boards, and it should be ...

You want to build a preamp, a DAC, a phono stage, anything that needs a nominal supply voltage between 3.3V and 18V or even more, positive and/or ...

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...

Burning Amplifier 3 Gain Stage Board (BAGS-N). One board works for 2 channels. The BA-3 gain stage is the latest feedback-less "front end" for the ...

This pair of M2 clone cicuit boards, use the same circuit as the Nelson Pass / First Watt M2 amplifier. However, the first "buffer" stage of amplif...

This set of circuit boards is used to make the F-5 Turbo power amplifier from the mind of DIY hero and audio genius, Nelson Pass. One set of PCBs w...

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...

This pair of F-4 Clone Boards use the same circuit as the Nelson Pass / Firstwatt F-4 model. Circuit description The F4 is a Push-Pull, Class-A, Mo...

Please note we have F6 parts / transformer kits now available (which include a pair of these PCBs). These F-6 Clone Boards use the same circuit as ...

The first Class AB power amplifier to be featured at the diyAudio Store. It has been designed from the ground up with the sonic character, power ou...

The Mezmerize is a direct coupled preamp (no coupling caps) based on Nelson Pass's B1 Buffer. It boasts symmetrical Salas shunt voltage regulators ...

Two black printed circuit boards for the MoFo MOSFET Follower amp project.  MoFo is a super-simple, easy-to-build amp, powered by a laptop power su...

Two P-BACO-2V20 output boards and two P-BACB-2V20 bias boards. The bias boards are only available in this set. Populate this set with your componen...

What are these? These PCBS have nothing to do with the 2021 DIY Sony VFET offering. This is a re-release of the 2017 Sony VFET Kit PCBs from our ...

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

Two P-BASO-2V20 output boards and two P-BASB-2V20 bias boards. The bias boards are only available in this set. Populate this set with your componen...

Burning Amplifier Gain Stage Board (BAGS) which handles voltage gain for two channels when you populate it with your components. This board is requ...