You're not the only one! I didn't bother testing my 733's when I assembled my x0x, and I've wondered ever since just how much difference it makes.braw wrote:Not sure what if anything this will do to the sound, but I'm excited to find out.
When I a/b'd with my friend's TB-303, we noticed two differences. The first was that on his cutoff knob, the bottom of the knob range was a cutoff value FAR lower than the bottom of my x0x cutoff knob range. He mentioned that in the 303, there's a trimpot to adjust the cutoff range, is this the case? If so, which resistor in the x0x adjusts this value, 'cause a trimpot should be an easy mod. Secondly, we also both noticed that the x0x square wave had more second and third order harmonics than the 303; you could almost hear a second tone in the x0x squarewave, a fifth above the fundamental. The saw wave was pretty much identical to our ears.
I suspect the square wave harmonics will be affected by the higher-value 733's. I'm really looking forward to hearing before and after WAV files! Please record at the highest quality you can... 24bit/48khz WAV would be awesome.
If there's a big difference, I'll definitely mod my x0x. There's a place near my house that apparently stocks almost 7000 different types of rare transistors.
Oh, and FF, that sip strip trick is great, I'm definitely going to do that.