The picture above shows a close of the new old stock pencil tube used in the Effectrode PC-2A photo-optical tube compressor. You can see the frame-grid construction and the grid is made from 22 carat gold plated wire that is thinner than a human hair – a work of precision engineering and art in its own right. You’ll notice a big improvement in tone when playing through the PC-2A when compared to solid-state and VCA compressors. The tube circuitry delivers stacks of head-room and low noise floor for outstanding dynamics, preserving the attack characteristics while creating musical and natural compression. It wraps your signal in velvet.