I hear 2 things....
I hear LFO ticking at all settings and I also hear 'whining' that gets more pronounced as the Feedback is turned up.
Recommend that you replace all of your Input and Output wiring with shielded (RG-174) wiring to get rid of the LFO tick. Be sure to ground the shielding from these lines only on one side (at the jacks). Also recommend adjusting your Feedback trim to get rid of the whine.
EDIT: Another idea is to remove the ground from EITHER the Input or Ouput jack but not both. Grounding one of the jacks will also provide ground to the enclosure and thus, the other jack by its contact with the enclosure.
I hear LFO ticking at all settings and I also hear 'whining' that gets more pronounced as the Feedback is turned up.
Recommend that you replace all of your Input and Output wiring with shielded (RG-174) wiring to get rid of the LFO tick. Be sure to ground the shielding from these lines only on one side (at the jacks). Also recommend adjusting your Feedback trim to get rid of the whine.
EDIT: Another idea is to remove the ground from EITHER the Input or Ouput jack but not both. Grounding one of the jacks will also provide ground to the enclosure and thus, the other jack by its contact with the enclosure.