Pearl 3 Phono Preamplifier

This is the pioneer kit for Wayne Colburn’s new phono stage, Pearl 3.  This includes all of the parts for the RIAA PCBs, as well as a bare power supply PCB. It does not include the chassis nor the chassis accoutrements. Like all previous pioneer kits this may have slight issues or oversights that early versions may have. Pioneer kits are intended for more experienced builders, or for eager and easygoing builders of all skill levels who are willing to seek forum assistance to resolve any problems themselves. Board dimensions: Phono board: 5 1/2" x  3 1/2" (140mm x 90 mm) Power board: 4" x 4" (100mm x 100mm) More information Pearl 3 Discussion Thread Notes The BOM specifies 4 heatsinks. Kits ship with two pairs already joined together.