Home Forums GuitarPCB Build Support Apollo Tremolo – no effect Reply To: Apollo Tremolo – no effect


OK.  I hope you had a nice night’s sleep.

First,  I suggest you remove the ICs and power from the circuit.  Then, do a complete re-solder of all connections and joints.  Replace the ICs and power and retest.  If no output, then use your audio probe and trace the signal through the input jack > bypass switch > board IN “T” pad > IC1B pin 7.> IC1A pin 1 > OUT pad “T” > bypass switch > OUT jack.  I saw on your video that the LED was flashing, so I believe the LFO circuit is fine.  Report results.