This board will definitely save your time and help you to build your DIY guitar pedal in the 1590B enclosure. Just built your effect circuit on the preperforated area of the PCB. Led, jacks and footswitch are mounted on the PCB, being only necessary to wire the battery. The PCB also includes power supply filtering and reverse polarity protection This PCB in Tayda website https://www.taydaelectronics.com/protoboard-for-1590b-diy-pcb-guitar-effect.html The schematic of this PCB is similar to DH.E14 (http://taydakits.com/instructions/1590b-enclosure-pcb  http://www.taydaelectronics.com/1590b-diy-pcb-guitar-effect.html )   PCB