Assembled boards/kits

MOSFET Pure Class A Amplifier Thick PCB Turbo V2 Partial Kit

This is the partial kit of a stereo class A MOSFET power amplifier, with reference to F5 turbo v2.  While the original F5 uses one pair of output MOSFET only, F5 turbo v2 u

Single-Ended 6L6 / EL34 / KT88 Tube Stereo Amplifier – Assembled Board (Without Tubes)

Baxandall Stereo Tone Control 12AX7 Tube Preamplifier – Assembled Board

75W 5A Adjustable DC-DC Converter with LED Display

USB to UART Serial Communication Module

Zero Recovery SiC Diode Module - Super Low Loss

Tube Stereo Preamplifier Matisse Fantasy Assembled

JFET Input Cascoded Buffer Board Assembled

Hiraga 30W Class A Amplifier partial assembled DIY Kit - Enhanced Version with current source & Kubota regulator Upgrades

Resistor Volume Control 256 Steps Stereo with Reliable Relays

CD Player High Stability Clock Buffer Module Assembled

10A relay remote switch for amplifier optically isolated one piece