Project

A LM317 circuit with 6V DC output as intermediary between an unregulated wall wart and my speakers.

Failed repair of a salvaged MikroTik RouterBOARD 750GL.

I repaired a pair of salvaged speakers.

Testing a PAM8403 Class-D amplifier module with a pair of salvaged speaker drivers

Assembling calibration resistors for the ESR Meter.

I have completed a XR2206 function generator kit build.

I have completed my build of Jay_Diddy_B’s 5 Transistor ESR Meter.

Transferring the digital clock circuit to a perfboard and putting it into an enclosure.

Sleep mode and Schmitt trigger on multiplexed analog buttons. Also, now the clock is powered by 18650 Li-ion cell.

Replacing Arduino Nano with regulatorless Arduino Pro Mini.