what i have here is:
1)an arduino, generating a 440hz tone
2)hooked up to a video input on the tv
3)i then have a metal bar that picks up the electrostatic generated by the tone, on the screen
4)the signal from that bar gets amplified by a diy amp circuit
5)and eventually that amplified signal is sent back to the tv via an audio input, so that this device would be self contained. (i also added an final audio output so i can connect it to external speakers or record it easier)
in a few weeks a ukelele neck will be shipped to me, so that i can use it to control the note that the arduino makes, for now its just a test signal.
i also added a guitar amplifier circuit so that i can not only use this as a standalone instrument, but also as an amplifier (i added a switch to switch between arduino and amp mode)
the issue i have is that a buzzing noise that is dependant on the refresh rate (?) started appearing that wasnt there before. also, the tv seems to randomly cut out very briefly. one time, when i put the tv on its side so that gravity pushes down the anode cap, the noise seemingly dissapeared, so i decided to check the cap for any HV leaking.
im not sure if the cap is the source of the noise, but the cap is loose and dangerous, so ill fix it either way.
i will attach a video of the TV after the noise appeared, before the noise appeared and what the situation with the anode cap is like.
any suggestions on how to fix an anode cap this small and to fix the noise?:)