Woops is my middle name
New member
Hello!
I just completed the Roboto. It kind of works, I'm getting lots of crazy sounds, reminiscent of a ring modulator more than anything, but the output volume is absurdly high and it doesn't sound much like the demo videos. I can only the volume up a hair past 0 before it gets unbearably loud. I turned the gain trimpot all the way down with little effect. I also double checked that I have the correct pots and resistors R8 - R11 along the output path. I even replaced the TL072. No dice.
I'm an experienced builder, and this is a relatively simple build, so I'm kind of surprised there's an issue. My first thought is that I got a bad HT8950, but it looks to be in good condition and I'm still getting a signal coming through.
Has anyone else experienced this? Or know of a reputable source for an HT8950?
Thank you
I just completed the Roboto. It kind of works, I'm getting lots of crazy sounds, reminiscent of a ring modulator more than anything, but the output volume is absurdly high and it doesn't sound much like the demo videos. I can only the volume up a hair past 0 before it gets unbearably loud. I turned the gain trimpot all the way down with little effect. I also double checked that I have the correct pots and resistors R8 - R11 along the output path. I even replaced the TL072. No dice.
I'm an experienced builder, and this is a relatively simple build, so I'm kind of surprised there's an issue. My first thought is that I got a bad HT8950, but it looks to be in good condition and I'm still getting a signal coming through.
Has anyone else experienced this? Or know of a reputable source for an HT8950?
Thank you