The recommended soldering sequence of this project follows the recommendation of first soldering low profile components and building up. Due to the limited space offered by the enclosure, the operational amplifier's adapter was set over some of the resistors.
LEDs and resistors are first
Sockets, Resistors, and Capacitors
Operational Amplifier on Top
Along with the usual point to point wiring, solder was used to connect certain pads together to form a pathway between the pins of certain devices.
Operational Amplifier is First to be Wired
Resonator is the last component to be added since it is somewhat shock sensitive
Micro-Controller and Decoder
Wiring Common Ground for LEDs
Wiring Stage is Complete