Retro Sonic Vintage Vibes
The MN3002 BBD in a Retro Sonic Vintage Vibes started making noise. All working conditions are in order so the guess is the BBD chip is not as it should.
The BBD is a MN3002.
Since the MN3002 BBD is hard to find, an extra adjustable low pass filter stage is installed. Allowing the user to set the cutoff frequency. Accessible with the bottom lid of next to the input jack.
